ASTM F3125-A325 - Precision Bolts

PLEASE NOTE:

The new F3125 specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852, and F2280. Until the F3125 specification is more widely used and until the A325 and A490 specifications have been eliminated by ASTM, we will continue to manufacture and sell A325 and A490 heavy hex structural bolts under their existing specification requirements, unless F3125 is referenced in the inquiry and/or purchase order.

ASTM A325 (F3125)

Structural bolts, steel, heat treated, 120/105 ksi minimum tensile strength.

The ASTM A325 specification covers high strength heavy hex structural bolts from 1/2” diameter through 1-1/2” diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts.

This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A449.

Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2″ but with similar mechanical properties.

Specifications

Types of A325 Bolts

Dimensions & Markings

Bolt Diam.	E	F			G		H			T
	Body Diam.	With Across Flat			With Across Corners		Head Height			Thread Length
	Max	Basic	Max	Min	Max	Min	Basic	Max	Min	Basic
1/2-13	0.515	7/8	0.875	0.850	1.010	0.969	5/16	0.323	0.302	1.00
5/8-11	0.642	1 1/16	1.062	1.031	1.227	1.175	25/64	0.403	0.378	1.25
3/4-10	0.768	1 1/4	1.250	1.212	1.443	1.383	15/32	0.483	0.455	1.38
7/8-9	0.895	1 7/16	1.438	1.394	1.660	1.589	35/64	0.563	0.531	1.50
1-8	1.022	1 5/8	1.625	1.575	1.876	1.796	39/64	0.627	0.591	1.75
1 1/8-7	1.149	1 13/16	1.812	1.756	2.093	2.002	11/16	0.718	0.658	2.00
1 1/4-7	1.277	2	2.00	1.938	2.309	2.209	25/32	0.813	0.749	2.00
1 3/8-6	1.404	2 3/16	2.188	2.119	2.526	2.416	27/32	0.878	0.810	2.25
1 1/2-6	1.531	2 3/8	2.375	2.300	2.742	2.622	15/16	0.974	0.902	2.25

F3125 Grade A325 Dimensions, Threads & Grade Marking
	Type 1	Type 3
Style Heavy Hex Bolts
Dimensions, ASME^B	B18,2,6	B18,2,6
Thread Fit, ASME^B	B1.1 UNC 2A	B1.1 UNC 2A
Grade Marking^{A, C}	A325	A325

^A A325 and A325M bolts lengths up to 4D which are fully threaded but which are not required to be fully threaded by the relevant ASME standard shall be marked with a “T”, see Supplementary Requirement S1. Bolts with any other non-standard dimensions, including thread length, shall be marked with an “S”, see Supplementary Requirement S2.
^B Manufactured to the latest revision at the time of manufacture, UNC for inch series and Metric Coarse (MC) for Metric Series.
^C Previously used markings may be sold and used indefinitely, bolts must be manufactured to current marking requirements upon initial publication of this standard.

Source: The table above is inspired by Table 1 from the ASTM F3125 Standard that you can purchase on the ASTM Website

F3125 Grade A325-1 Chemical Properties

Chemical Requirements^C For ASTM F3125 Grade A325-1 & F1852-1 Bolts
Element	Carbon or Alloy^D with or Without Boron
Carbon	0.30 - 0.52
Manganese, min	0.60 min
Phosphorus Max	0.035
Sulfur Max	0.040
Silicon	0.15 - 0.30
Boron	0.003 max
Copper	^B
Nickel	^B
Chromium	^B
Vanadium	^B
Molybdenum	^B
Titanium	^B

^B Not Specified.
^C Product analysis that is outside the specified range is permitted provided it is within 10% of the value required of the heat analysis. For example Heat analysis C 0.30-0.52 = Product analysis C 0.27-0.57 or Phosphorus max Heat analysis 0.040 = Product analysis 0.044.
^D Steel, as defined by the American Iron and Steel Institute, shall be considered to be alloy when the maximum of the range given for the content of alloying elements exceeds one or more of the following limits: Manganese, 1.65 %; silicon, 0.60 %; copper, 0.60 % or in which a definite range or a definite minimum quantity of any of the following elements is specified or required within the limits of the recognized field of constructional alloy steels: aluminum, chromium up to 3.99 %, cobalt, columbium, molybdenum, nickel, titanium, tungsten, vanadium, zirconium, or any other alloying elements added to obtain a desired alloying effect.

Source: The table above is inspired by Table 2 from the ASTM F3125 Standard that you can purchase on the ASTM Website

F3125 Grade A325-3 Chemical Properties

Chemical Requirements^C For ASTM F3125 Grade A325-3 & F1852-3 Bolts
Element	Composition A	Composition B	Based on Corrosion Index^E
Carbon	0.33 - 0.40	0.38 - 0.48	0.30 - 0.52 max
Manganese	0.90 - 1.20	0.70 - 0.90	0.60 min
Phosphorus Max	0.035	0.035	0.035
Sulfur Max	0.040	0.040	0.040
Silicon	0.15 - 0.30	0.30 - 0.50	^B
Boron	^B	^B	^B
Copper	0.25 - 0.45	0.20 - 0.40	0.20 - 0.60B
Nickel	0.25 - 0.45	0.50 - 0.80	0.20B, C min
Chromium	0.45 - 0.65	0.50 - 0.75	0.45B min
Vanadium	^B	^B	^B
Molybdenum	^B	0.06 max	0.10B, C min
Titanium	^B	^B	^B

^B Not Specified.
^C Product analysis that is outside the specified range is permitted provided it is within 10% of the value required of the heat analysis. For example Heat analysis C 0.30-0.52 = Product analysis C 0.27-0.57 or Phosphorus max Heat analysis 0.040 = Product analysis 0.044.
^E Type 3 bolts conforming to Table 2, or Type 3 bolts which have a copper minimum Heat Analysis of 0.20% and a Corrosion Index of 6 or higher as calculated from the Heat Analysis as described in Guide G101 Predictive method based on the data of Larabee and and Coburn shall be accepted: I = 26.01 (% Cu) + 3.88 (% Ni) + 1.20 (% Cr) + 1.49 (% Si) + 17.28 (% P) – 7.29 (% Cu) (% Ni) – 9.10 (%Ni) (% P) – 33.39 (% Cu)2

Source: The table above is inspired by Table 2 from the ASTM F3125 Standard that you can purchase on the ASTM Website

Permitted Coating

PERMITTED COATING^H
	F2329^A	B695^A	F1136^E,G	F2833^F,G
Bolt	Hot-Dip Galvanized	Mechanically Deposited Zinc	Zinc/Aluminum	Zinc/Aluminum
A325	50 μm	Class 55	Grade 3	Grade 1
DIMENSIONAL LIMITS	BOLT PITCH DIAM.	BOLT PITCH DIAM.	BOLT PITCH DIAM.	BOLT PITCH DIAM.
	OS AFTER COATING^C,D	OS AFTER COATING^C	OS AFTER COATING^C	OS AFTER COATING^C
	IN.	IN.	IN.	IN.
1/2-13 UNC	0.018	0.012	0.006	0.006
5/8-11 UNC	0.020	0.013	0.007	0.007
3/4-10 UNC	0.020	0.013	0.007	0.007
7/8-9 UNC	0.022	0.015	0.008	0.008
1-8 UNC	0.024	0.016	0.008	0.008
1 1/8-7 UNC	0.024	0.016	0.008	0.008
1 1/4-7 UNC	0.024	0.016	0.008	0.008
1 3/8-6 UNC	0.027	0.018	0.010	0.010
1 1/2-6 UNC	0.027	0.018	0.0.10	0.010

^A Supplementary nut lubrication to A563 S1 is required for hot dip and mechanically deposited zinc coatings.
^C Bolt pitch oversize limit in case of dispute. Material within the plain gauge limits which meets the coating thickness requirements and assembles freely need not be
measured to this tolerance.
^D Hot-Dip galvanized is typically tapped after coating. Others coatings are typically applied after nut tapping.
^E Grade 5 of this coating meets the supplementary lubrication requirements of A563 S1.
^F Grade 1 of this coating meets the supplementary lubrication requirements of A563 S1.
^G Nuts overtapped for coating for use with 150 ksi/1040 MPa minimum tensile strength fasteners shall be proof load tested to a minimum of 175,000 psi after overtapping.
^H Other metallic and non-metallic coatings may be used on 120 ksi/830 MPa minimum tensile fasteners upon agreement between the purchaser and user. Performance
requirements shall be specified by the purchaser and agreed to in writing. Coatings for 150 ksi/1040 MPa bolts must be qualified.
OS = over-size
Source: The table above is inspired by Table A1.1 from the ASTM F3125 Standard that you can purchase on the ASTM Website

Tensile Strength Requirements

F3125 Grade A325 & F1852 TENSILE STRENGHT REQUIREMENTS FOR BOLTS TESTED FULL SIZE
	Stress Area^A	Tensile Min.	Proof Load^C Min.	Proof Load^D Min.
in.	in².	ft-lb	ft-lb	ft-lb
1/2-13	0.142 in².	17 050 ft-lb	12 050 ft-lb	13 050 ft-lb
5/8-11	0.226 in².	27 100 ft-lb	19 200 ft-lb	20 800 ft-lb
3/4-10	0.334 in².	40 100 ft-lb	28 400 ft-lb	30 700 ft-lb
7/8-9	0.462 in².	55 450 ft-lb	39 250 ft-lb	42 500 ft-lb
1-8	0.606 in².	72 700 ft-lb	51 500 ft-lb	55 750 ft-lb
1 1/8-7	0.763 in².	91 600 ft-lb^B	64 900 ft-lb^B	70 250 ft-lb^B
1 1/4-7	0.969 in².	116 300 ft-lb^B	82 400 ft-lb^B	89 200 ft-lb^B
1 3/8-6	1.155 in².	138 600 ft-lb^B	98 200 ft-lb^B	106 300 ft-lb^B
1 1/2-6	1.405 in².	168 600 ft-lb^B	119 500 ft-lb^B	129 300 ft-lb^B
Above Values Based On	*	120 000 psi	85 000 psi	92 000 psi

^A The stress area is calculated as follows for inch: AS = 0.7854 [D – (0.9743/P)]2; for Metric: AS = 0.7854 (D – 0.9382P)2; where AS = Stress Area, D = Nominal Bolt Size, and P = thread pitch.
^B Previous versions of A325 and F1852 required tensile testing based on 105 ksi min. tensile strength for larger diameters, and proof load testing of 74 ksi (length measurement method) and 81 ksi (yield strength method). This specification was changed to align with AISC/RCSC design and installation values and metric equivalent strength levels.
^C Proof load length measurement.
^D Alternative Proof load Yield Strength Method.

Source: The table above is inspired by Table 4 from the ASTM F3125 Standard that you can purchase on the ASTM Website

TENSILE STRENGHT REQUIREMENTS FOR SPECIMENS MACHINED BOLTS
F3125 Grade A325 & F1852	Tensile, min.	Tensile, max.	Yeld min,	Elong. in 4D, min. %	Red. of Area min. %
F3125 Grade A325 & F1852	120 000 Psi	*	92 000 Psi	14	35

When the length of the bolt makes full-size testing impractical, machined specimens shall be tested and shall conform to the requirements specified in Table 5.

The table above is inspired by Table 5 from the ASTM F3125 Standard that you can purchase on the ASTM Website

Rotational Capacity

120 KSI / F3125 GRADE A325
DIAM	4D LENGTH	4D TO 8D LENGTH	8D TO 12D LENGTH	PT	P1		P2
DIAM	4D LENGTH	4D TO 8D LENGTH	8D TO 12D LENGTH	TENSION	MIN TENSION	MAX TORQUE	MIN TENSION
1/2-13	1 1/4" to 2"	2 1/4" to 4"	4 1/4" to 6"	1 kip	12 kip	125 ft·lb	14 kip
5/8-11	1 1/2" to 2 1/2"	2 3/4" to 5"	5 1/4" to 7 1/2"	2 kip	19 kip	247 ft·lb	22 kip
3/4-10	1 1/2" to 3"	3 1/4" to 6"	6 1/4" to 9"	3 kip	28 kip	437 ft·lb	32 kip
7/8-9	1 3/4" to 3 1/2"	3 3/4" to 7"	7 1/4" to 10 1/2"	4 kip	39 kip	710 ft·lb	45 kip
1-8	2" to 4"	4 1/4" to 8"	8 1/4" to 12"	5 kip	51 kip	1062 ft·lb	59 kip
1 1/8-7	2 1/4" to 4 1/2"	4 3/4" to 9"	9 1/4" to 13 1/2"	6 kip	64 kip	1502 ft·lb	74 kip
1 1/4-7	2 1/2" to 5"	5 1/4" to 10"	10 1/4" to 15"	8 kip	81 kip	2120 ft·lb	94 kip
1 3/8-6	2 1/2" to 5 1/2"	5 3/4" to 11"	11 1/4" to 16 1/2"	10 kip	97 kip	2779 ft·lb	112 kip
1 1/2-6	2 1/2" to 6"	6 1/4 to 12"	12 1/4" to 18"	12 kip	118 kip	3688 ft·lb	136 kip

PT= Pre-Tension (10% of min. tension in P1)
P1= Represent 70% of minimum specified tensile strenght and tension in pounds.
P2 = 15% of min. tension
D= Dia. (in.)/12 = bolt diameter in feet.
Tension is measured in kip. A kip equals 1000 pounds-force
Torque is measured in foot pounds (ft·lb)
Source: The table above is inspired by Table A2.1, A2.2, A2.3 and A2.4 from the ASTM F3125 Standard that you can purchase on the ASTM Website

Procedure

Bolts that fit in a tension measuring device:

Install the bolt and any required spacers in the tension measuring device so that the bolt stick-out is flush with the nut to a maximum of three threads stick-out.
Tighten the fastener assembly to the tensions (PT)
Match-mark the bolt, nut and faceplate of the calibrator.
Tighten the fastener assembly to at least the minimum installation tension (P1) and record both the tension and torque. The torque shall be read with the nut in motion.For tensions exceeding minimum tension the torque shall not exceed 0.25 PD,where P = tension in pounds, and D = Dia. (in.)/12 = bolt diameter in feet.
Further tighten the nut to the rotation (P2). The rotation is measured from the initial marking (PT)
Record the tension at the completion of the rotation (P2). The tension shall equal or exceed 1.15 × the minimum installation tension.
After loosen and remove the nut. There shall be no sign of thread shear failure, stripping or torsional failure. The nut shall turn on the bolt threads to the position it was in during the test. The nut does not need to run the full length of the threads. Inability to turn the nut by hand is considered thread failure. Broken bolts fail the test.

Download our usefull ROCAP data form PDF

The assembly lot passes the RC test if all samples meet the requirements of P1 and P2

The lot shall be considered non conforming if the assembly fails to pass any one of the following requirements:

Exceeding the maximum allowable torque in P1
Inability of the assembly to reach the rotation required
Inability to remove the nut after installing to the rotation specified
Failure to provide the tension required (P2) after full rotation
Shear failure of the threads as determined by visual examination of bolt and nut threads following removal.
Torsional or torsional/tension failure of the bolt.

Elongation of the bolt, in the threads between the nut and bolt head, is to be expected and is not to be classified as a failure.

If the bolts are too short to fit in a tension measuring device :

Refer to ASTM F3125 – 15 annexe A2. section A2.7 Method 2 – short bolt test procedure

Pretensioned installation involves the inelastic elongation of the portion of the threaded length between the nut and the thread run-out. ASTM A490 bolts and galvanized ASTM A325 bolts possess sufficient ductility to undergo one pretensioned installation, but are not consistently ductile enough to undergo a second pretensioned installation. Black ASTM A325 bolts, however, possess sufficient ductility to undergo more than one pretensioned installation as suggested in the Guide (Kulak et al., 1987). As a simple rule of humb, a black ASTM A325 bolt is suitable for reuse if the nut can be run up the threads by hand

Sampling

sampling shall be to F1470, except that a minimum of two assemblies shall be tested regarless of lot quantity. Alternate sampling may be agreed upon between the supplier and purchaser.

Lot Size	Sample Size
1-50	1
51-280	2
281-3,200	3
3201-35,000	4
35,001-150,000	5
150,001-500,000	6
500,001+	7

*ASTM A194 2H heavy hex nuts may be used instead of A563DH nuts on type 1 A325, A490, F1852 and F2280 bolts. When coated, the same requirements than ASTM A563 and it's specification apply.

Connection Types

Matching Components

F3125 Grade A325, A490, F1852 & F2280 Matching Components
	Type 1	Type 3
Recommended Nut and Washer
Plain Nut	A563 DH	A563 DH3
Suitable Alternative^E	DH3, D, C, C3	C3
Coated Nut	A563 DH	A563 DH3
Flat, Bevel or Thick washer if used	F436-1	F436-3

^E ASTM A194/A194M 2H heavy hex nuts may be used in place of A563 DH nuts on type 1 A325, A490, F1852 and F2280 bolts. When coated, the same requirements of A563 and this specification, and Annex A1, including overtap, coating, rotational capacity and proof load testing apply.

Source: The table above is inspired by Table 1 from the ASTM F3125 Standard that you can purchase on the ASTM Website

Hardness Requirements

HARDNESS REQUIREMENTS FOR F3125 GRADE A325 & F1852 BOLTS
		Brinell HB		Rockwell HRC
		Min	Max	Min	Max
Up to 1" INCLUSIVE	Less than 2D	253	319	25	34
Up to 1" INCLUSIVE	2D and longer	---	319	---	34
Over 1"	Less than 3D	253	319	25	34
Over 1"	3D and longer	---	319	---	34

10.2 Hardness:
10.2.1 Bolts shall conform to the hardness in Table 6. For
lots on which both hardness and tension tests are performed,
acceptance based on tensile requirements shall take precedence
in the event of low hardness readings.

Source: The table above is inspired by Table 6 from the ASTM F3125 Standard that you can purchase on the ASTM Website

Kegs & Skids Quantities

Diam. 1/2'' Keg Qty

DIAM: 1/2	FULL KEG*	HALF KEG		PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
1 1/4	900	450	89.55	8,140	1,619.86
1 1/2	800	400	84.80	7,200	1,526.40
1 3/4	750	375	84.38	6,750	1,518.75
2	700	350	83,65	6,300	1,505.7
2 1/4	650	325	82.23	5,850	1,480.05
2 1/2	600	300	80.10	5,400	1,441.80
2 3/4	550	275	77.28	No Informations	No Informations
3	525	265	77.92	No Informations	No Informations
3 1/4	500	250	76	No Informations	No Informations
3 1/2	475	240	77.28	No Informations	No Informations
3 3/4	425	215	71.17	No Informations	No Informations
4	400	200	70	3,600	1,260
4 1/4	400	200	No Informations	No Informations	No Informations
4 1/2	375	190	69.54	No Informations	No Informations
4 3/4	350	175	No Informations	No Informations	No Informations
5	300	150	60.75	2,700	1,093.50

*Full Keg Sizes are for reference only. Precision Bolts only provide structural bolts in Half and third kegs sizes.
Kegs and skids weight is an approximation. The real weight may slightly differ from what is shown here.
Other Lengths could be available upon request

Diam. 5/8'' Keg Qty

DIAM: 5/8	FULL KEG*	HALF KEG	BOLTS/KEG	PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
1 1/2	500	250	92.5	4,500	1,665
1 3/4	500	250	98	4,500	1,764
2	450	225	92.93	4,050	1,672.74
2 1/4	400	200	87.4	3,600	1,573.20
2 1/2	400	200	91.2	3,600	1,641.60
2 3/4	350	175	83.65	No Information	No Information
3	330	165	82.5	No Information	No Information
3 1/4	300	150	78.5	No Information	No Information
3 1/2	300	150	81.45	No Information	No Information
3 3/4	260	130	73.32	No Information	No Information
4	260	130	76.18	No Information	No Information
4 1/4	240	120	72.96	No Information	No Information
4 1/2	230	115	72.34	No Information	No Information
4 3/4	230	115	76.48	No Information	No Information
5	230	115	77.28	No Information	No Information
5 1/4	220	110	No Information	No Information	No Information
5 1/2	210	105	77.39	No Information	No Information
5 3/4	200	100	No Information	No Information	No Information
6	190	95	72.01	No Information	No Information

Diam. 3/4'' Keg Qty

DIAM: 3/4	FULL KEG*	HALF KEG	BOLTS/KEG	PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
1 1/2	340	170	96.39	3,060	1,735.02
1 3/4	300	150	89.7	2,700	1,529.82
2	300	150	93.75	2,700	1,593
2 1/4	270	135	89.24	2,430	1,606.23
2 1/2	260	130	89.96	2,340	1,619.28
2 3/4	250	125	90.38	2,250	1,843.65
3	230	115	86.71	2,070	1,560.78
3 1/4	220	110	86.35	1,980	1554.30
3 1/2	210	105	85.68	1,890	1,542.24
3 3/4	200	100	84.70	1,800	1,524.60
4	190	95	83.41	1,710	1,501.38
4 1/4	170	85	77.27	1,530	1390.77
4 1/2	170	85	79.90	1,530	1,438.20
4 3/4	150	75	72.9	1,350	1,312.20
5	150	75	75.23	1,350	1,354.05
5 1/4	130	65	67.21	1,170	1,209.78
5 1/2	130	65	69.23	1,170	1,246.05
5 3/4	130	65	71.18	1,170	1,155.60
6	130	65	73.13	1,170	1,316.25
6 1/4	120	60	No Information	1,080	No Information
6 1/2	120	60	71.10	1,080	1,279.80
6 3/4	110	55	No Information	No Information	No Information
7	110	55	69.20	990	1,242.45
7 1/4	No Information	No Information	No Information	No Information	No Information
7 1/2	100	50	65.75	900	1,148.85
7 3/4	No Information	No Information	No Information	No Information	No Information
8	90	45	61.88	810	1,113.75
8 1/4	No Information	No Information	No Information	No Information	No Information
8 1/2	85	40	58.76	810	1,189.89
8 3/4	No Information	No Information	No Information	No Information	No Information
9	80	35	53.52	No Information	No Information
9 1/4	No Information	No Information	No Information	No Information	No Information
9 1/2	70	30	47.73	No Information	No Information
9 3/4	No Information	No Information	No Information	No Information	No Information
10	60	25	41.33	540	826.20

Diam. 7/8'' Keg Qty

DIAM: 7/8	FULL KEG*	HALF KEG	BOLTS/KEG	PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
1 3/4	220	110	97.9	No Information	No Information
2	200	100	93.2	1,800	1,589.94
2 1/4	190	95	92.53	1,710	1,665.54
2 1/2	180	90	91.53	1,620	1647.54
2 3/4	170	85	90.02	1,530	1,620.27
3	160	80	88.08	1,440	1,512
3 1/4	150	75	85.58	1,350	1,540.35
3 1/2	150	75	88.58	1,350	1,594.35
3 3/4	140	70	86.17	1,260	1,551.06
4	130	65	82.62	No Information	No Information
4 1/4	120	60	77.88	No Information	No Information
4 1/2	120	60	80.88	1,080	1,455.84
4 3/4	110	55	76.34	990	1,374.12
5	110	55	79.25	No Information	No Information
5 1/4	100	50	73.4	No Information	No Information
5 1/2	100	50	75.4	No Information	No Information
5 3/4	90	45	70.65	No Information	No Information
6	90	45	71.46	No Information	No Information

Diam. 1'' Keg Qty

DIAM: 1''	FULL KEG*	HALF KEG		PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
2	150	75	105	No Information	No Information
2 1/4	140	70	93.31	1,260	1,764
2 1/2	140	70	97.51	1,260	1,679.58
2 3/4	130	65	93.80	1,170	1,688.31
3	130	65	97.70	1,170	1,758.51
3 1/4	120	60	93.18	1,080	1,677.24
3 1/2	110	55	88.17	990	1,586.97
3 3/4	110	55	91.47	990	1,646.37
4	100	50	85.65	900	1,541.70
4 1/4	90	45	76.95	810	1,385.10
4 1/2	90	45	82.04	810	1,476.63
4 3/4	85	45	84.74	810	1,525.23
5	85	45	88.335	810	1,590.03
5 1/4	80	40	82.40	No Information	No Information
5 1/2	80	40	82.12	No Information	No Information
5 3/4	70	35	75.95	No Information	No Information
6	35	35	75.71	No Information	No Information
6 1/2	35	35	79.56	No Information	No Information
7	60	30	71.49	No Information	No Information

*Full Keg Sizes are for reference only. Precision Bolts only provide structural bolts in Half and third kegs sizes. Kegs and
skids weight is an approximation. The real weight may slightly differ from what is shown here.
Other Lengths could be available upon request

Diam. 1-1/8'' Keg Qty

DIAM: 1 1/8''	FULL KEG*	HALF KEG		PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
2 3/4	100	50	91.50	No Information	No Information
3	95	50	99.50	No Information	No Information
3 1/4	85	45	92.70	No Information	No Information
3 1/2	80	40	85.20	No Information	No Information
3 3/4	80	40	88	No Information	No Information
4	75	40	90.80	No Information	No Information
4 1/4	70	35	81.90	No Information	No Information
4 1/2	70	35	84.35	No Information	No Information
4 3/4	65	35	86.80	No Information	No Information
5	65	30	76.50	No Information	No Information
5 1/4	55	30	78	No Information	No Information
5 1/2	50	25	83.75	No Information	No Information
5 3/4	50	25	92.50	No Information	No Information
6	50	25	70.75	No Information	No Information
6 1/2	45	25	74.25	No Information	No Information
7	45	25	77.75	No Information	No Information
7 1/2	40	20	65.06	No Information	No Information

Diam. 1-1/4'' Keg Qty

DIAM: 1 1/4''	FULL KEG*	HALF KEG		PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
2 1/2	80	40	102	No Information	No Information
2 3/4	75	40	No Information	No Information	No Information
3	70	35	91	No Information	No Information
3 1/4	70	35	93.80	No Information	No Information
3 1/2	65	35	96.95	No Information	No Information
3 3/4	60	30	85.80	No Information	No Information
4	55	30	88.20	No Information	No Information
4 1/4	55	30	90.90	No Information	No Information
4 1/2	50	25	78	No Information	No Information
4 3/4	50	25	80	No Information	No Information
5	50	25	82.25	No Information	No Information
5 1/4	45	25	82.25	No Information	No Information
5 1/2	45	25	86.50	No Information	No Information
5 3/4	40	20	No Information	No Information	No Information
6	40	20	72.60	No Information	No Information

*Full Keg Sizes are for reference only. Precision Bolts only provide structural bolts in Half and third kegs sizes.

Kegs and skids weight is an approximation. The real weight may slightly differ from what is shown here.
Other Lengths could be available upon request

Diam. 1-1/2'' Keg Qty

DIAM: 1 1/2''	FULL KEG*	HALF KEG		PER SKID INFOS
LENGTH	BOLTS/KEG	BOLTS/KEG	LBS/KEG	BOLTS/SKID	LBS/SKID
3 1/2	35	20	91.60	No Information	No Information
3 3/4	35	20	94.20	No Information	No Information
4	30	15	72.45	No Information	No Information
4 1/4	30	15	45.25	No Information	No Information
4 1/2	30	15	75.90	No Information	No Information
4 3/4	30	15	77.85	No Information	No Information
5	30	15	79.80	No Information	No Information
5 1/2	25	15	83.70	No Information	No Information
6	40	15	85.65	No Information	No Information
6 1/2	20	10	59.80	No Information	No Information

*Full Keg Sizes are for reference only. Precision Bolts only provide structural bolts in Half and third kegs sizes.

Kegs and skids weight is an approximation. The real weight may slightly differ from what is shown here.
Other Lengths could be available upon request

Quantity

Other Sizes are available upon request. We can manufacture custom length and thread as long as it respect the A325 standards. Contact us to get a quotation.

Buy the ASTM F3125 Standard

TYPES OF F3125 GRADE A325 BOLTS
TYPE 1	Medium carbon, carbon boron, or medium carbon alloy steel. (STANDARD)
TYPE 2	Withdrawn November 1991.
TYPE 3	Weathering steel.
T	Fully threaded A325. (Restricted to 4 times the diameter in length).
M	Metric A325.

CONNECTION TYPES
SC	Slip critical connection.
N	Bearing type connection with threads included in the shear plane.
X	Bearing-type connection with threads excluded from the shear plane.