ASTM A325 Bolts
Leading SA 325 Type 1 Bolt and Nuts manufacturer in India
Table of Content
ASTM A325 bolts specifications

SA325 Bolt Sizes
M2 to M24
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A325 Nuts Size
M3 – M56 | 3/6″ to 2″
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ISO Standard
ISO 898‑1
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ASME SA325 fasteners Length
3 mm to 200 mm
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A325 type 1 hex bolts Melting Point
1425–1540 °C
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A325 stud bolt Specific Heat
480 J/kg·K
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ASTM A325M type 1 square nut Threads
UNF / BSW / BSF / METRIC / UNC
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SA325 type 3 anchor bolts Standards
DIN 931, 933, 934, 7991, 976, 125 / ASME B18.2.1, B18.3
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Custom Sizes
Trusted ASTM A325 Bolts Manufacturer in India in ½″ to 1½″ Diameter range.
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A325 Studs Type
Tap-End / Fully or Fine threaded / Double-End
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Origin
Indian / Russian / Korean / European
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ASTM A325 eye bolts Condition
Threading / Cold Drawn
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Manufacturing Technique
CNC Machined / Hot forging / Cold forging
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SA325 type 3 Bolts Thread Pitch
Coarse Threads / Fine Threads
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A325 type 1 hex bolts Finish
Phosphating / Passivation / HDG
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ASTM A325 Bolt Drive Style
- Cross
- Truss
- Torx
- Round
- Hex
- Oval
- Pan
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ASME SA325 hex head bolts Head Types
- Phillips Drive
- Button head
- Slotted Drive
- Socket cap head
- Flat
- Hex washer head
- Slotted hex washer
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A325 type 1 hex nuts Thread Class
- 3G
- 4G
- 2G
- 5 ONF
- Class 2A (Medium fit)
- Class 3A (Tight fit)
- Class 1A (Loose fit)
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Packaging
- Wooden Pallet
- Carton Box
- Wooden Cases
- Blister Packs
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Certificate
- Raw Materials Certificate
- EN 10204/3.1B
- 100% Radiography Test
- UT and PMI Test
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Value Added Services
- Head Shank Drilling
- Head Painting
- Color Coding
- Laser Etching
Refer A325 anchor bolt specifications, stockist of ASTM A325 type 2 Nuts in diameter range of 1/2" to 4"
Different types of ASME SA325 Bolt
ASTM A325 heavy hex bolt
ASME SA325 hex nuts
A325 type 1 hex bolts
ASME SA325 type 1 square bolts
A325 stud bolt
ASTM A325M type 1 square nut
SA 325 threaded rod
SA325 type 3 anchor bolts
| Product | Price in USD | Price in Dirham | Price in Euro |
|---|---|---|---|
| 1/2 X 3.25 A325 structural bolt, ASME B18.2.1 | US $4.37 | 16.05 AED | € 3.72 |
| 5/8 X 85MM ASTM A325 Stud Bolt, UNC | US $4.64 | 17.04 AED | € 3.94 |
View A325 fasteners torque chart, we supply ASTM A325 high strength bolts in different finishes and sizes
| Types | Feature |
|---|---|
| TYPE 1 | Medium carbon |
| TYPE 3 | Weathering steel. |
| M | Metric A325 |
| T | Fully threaded A325 |
ASTM A325 is standard for high strength structural bolts, We manufacture A325 type 3 u bolt in custom sizes on demand
ASTM A325 threaded rod chemical properties
Carbon
0.30 – 0.52
Manganese
0.60 min
Phosphorus
0.035 max
Sulfur
0.035 max
Sulfur
0.040 max
Silicon
0.15 – 0.30
Boron
0.003 max
Check yield and tensile strength of A325 heavy hex bolts, ASTM A325 lock washer are widely used in structural steel applications
ASTM A325 nuts mechanical properties
| Size | Yield, ksi | Tensile, ksi | RA %, min | Elong. %, min |
|---|---|---|---|---|
| 1⁄2 - 1 | 92 min | 120 min | 35 | 14 |
| 1 1⁄8 - 1 1⁄2 | 81 min | 105 min | 35 | 14 |
Connection Types of A325 type 1 Hex Bolt
| Type | Details |
|---|---|
| SC | Slip critical connection |
| X | Bearing-type connection with threads excluded from the shear plane |
| N | Bearing type connection with threads included in the shear plane |
| Feature | ASTM A193 | ASTM A325 |
|---|---|---|
| Tensile Strength | 75–150+ ksi | 105–120 ksi |
| Heat Treatment | Required | Quenched & tempered |
| Corrosion Resistance | High | Moderate |
| Applicable Nuts | A194 | A563 |
| Application | High-temp & pressure | Structural bolting |
| Feature | ASTM A194 | ASTM A325 |
|---|---|---|
| Material Type | Carbon, alloy, or stainless steel | Medium carbon steel |
| Corrosion Resistance | High | Limited |
| Applies To | Nuts | Bolts |
| Applications | High-pressure, high-temp, or corrosive service | Structural bolting |
| Bolt Size | D | C (min) | B | A (max) | F Thread Length for Bolt Length |
E | ||
|---|---|---|---|---|---|---|---|---|
| 6 and shorter |
over 6 | max | min | |||||
| 1/4 | 11/64 | 0.484 | 7/16 | 0.26 | 0.75 | 1 | 0.03 | 0.01 |
| 5/16 | 7/32 | 0.552 | 1/2 | 0.324 | 0.875 | 1.125 | 0.03 | 0.01 |
| 3/8 | 1/4 | 0.62 | 9/16 | 0.388 | 1 | 1.25 | 0.03 | 0.01 |
| 7/16 | 19/64 | 0.687 | 5/8 | 0.452 | 1.125 | 1.375 | 0.03 | 0.01 |
| 1/2 | 11/32 | 0.826 | 3/4 | 0.515 | 1.25 | 1.5 | 0.03 | 0.01 |
| 5/8 | 27/64 | 1.033 | 15/16 | 0.642 | 1.5 | 1.75 | 0.06 | 0.02 |
| 3/4 | 1/2 | 1.24 | 1-1/8 | 0.768 | 1.75 | 2 | 0.06 | 0.02 |
| 7/8 | 37/64 | 1.447 | 1-5/16 | 0.895 | 2 | 2.25 | 0.06 | 0.02 |
| 1 | 43/64 | 1.653 | 1-1/2 | 1.022 | 2.25 | 2.5 | 0.09 | 0.03 |
| 1-1/8 | 3/4 | 1.859 | 1-11/16 | 1.149 | 2.5 | 2.75 | 0.09 | 0.03 |
| 1-1/4 | 27/32 | 2.066 | 1-7/8 | 1.277 | 2.75 | 3 | 0.09 | 0.03 |
| 1-3/8 | 29/32 | 2.273 | 2-1/16 | 1.404 | 3 | 3.25 | 0.09 | 0.03 |
| 1-1/2 | 1 | 2.48 | 2-1/4 | 1.531 | 3.25 | 3.5 | 0.09 | 0.03 |
| 1-3/4 | 1-5/32 | 2.893 | 2-5/8 | 1.785 | 3.75 | 4 | 0.12 | 0.04 |
| 2 | 1-11/32 | 3.306 | 3 | 2.039 | 4.25 | 4.5 | 0.12 | 0.04 |
| 2-1/4 | 1-1/2 | 3.719 | 3-3/8 | 2.305 | 4.75 | 5 | 0.19 | 0.06 |
| 2-1/2 | 1-21/32 | 4.133 | 3-3/4 | 2.559 | 5.25 | 5.5 | 0.19 | 0.06 |
| 2-3/4 | 1-13/16 | 4.546 | 4-1/8 | 2.837 | 5.75 | 6 | 0.19 | 0.06 |
| 3 | 2 | 4.959 | 4-1/2 | 3.081 | 6.25 | 6.5 | 0.19 | 0.06 |
| 3-1/4 | 2-3/16 | 5.372 | 4-7/8 | 3.335 | 6.75 | 7 | 0.19 | 0.06 |
| 3-1/2 | 2-5/16 | 5.786 | 5-1/4 | 3.589 | 7.25 | 7.5 | 0.19 | 0.06 |
| 3-3/4 | 2-1/2 | 6.198 | 5-5/8 | 3.858 | 7.75 | 8 | 0.19 | 0.06 |
| 4 | 2-11/16 | 6.612 | 6 | 4.111 | 8.25 | 8.5 | 0.19 | 0.06 |
| Bolt Size | Bolt Dia. [in] |
|---|---|
| #0 | 0.06 |
| #2 | 0.086 |
| #4 | 0.112 |
| #5 | 0.125 |
| #6 | 0.138 |
| #8 | 0.164 |
| #10 | 0.19 |
| 1/4" | 0.25 |
| 5/16" | 0.3125 |
| 3/8" | 0.375 |
| 7/16" | 0.4375 |
| 1/2" | 0.5 |
| 5/8" | 0.625 |
| 3/4" | 0.75 |
| 7/8" | 0.875 |
| 1" | 1 |
| 1-1/8" | 1.125 |
| 1-1/4" | 1.25 |
| 1-3/8" | 1.375 |
| 1-1/2" | 1.5 |
ASTM A325 high strength bolts torque chart
| Bolt Size | TPI | Tension | Tightening Torque Range (ft lbs) (Min - Max) | ||
|---|---|---|---|---|---|
| Min | Max | Plain | Galv+Waxed | ||
| 1 1⁄2 | 6 | 118000 | 143000 | 2,950 - 3,575 | 1,475 - 1,788 |
| 1 3⁄8 | 6 | 97000 | 117000 | 2,223 - 2,681 | 1,111 - 1,341 |
| 1 1⁄4 | 7 | 81000 | 98000 | 1,687 - 2,042 | 844 - 1,021 |
| 1 1⁄8 | 7 | 64000 | 77000 | 1,200 - 1,444 | 600 - 722 |
| 1 | 8 | 51000 | 61000 | 850 - 1,017 | 425 - 508 |
| 7⁄8 | 9 | 39000 | 47000 | 569 - 685 | 284 - 343 |
| 3⁄4 | 10 | 28000 | 34000 | 350 - 425 | 175 - 213 |
| 5⁄8 | 11 | 19000 | 23000 | 198 - 240 | 99 - 120 |
| 1⁄2 | 13 | 12000 | 14000 | 100 - 117 | 50 - 58 |
ASTM A325M type 1 head markings
| Grade | Marking Details |
|---|---|
| Type 1 | Type 1 bolts shall me marked "A325M" and "8S" |
SA325 type 3 bolts weight chart
| LENGTH | DIAMETER | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M 5 | M 6 | M 8 | M 10 | M 12 | M 14 | M 16 | M 18 | M 20 | M 22 | |
| 60mm | 1.67 | 3.27 | 5.774 | 8.183 | 12.255 | 15.244 | 20 | 25.126 | 32.051 | |
| 55mm | 1.56 | 3.071 | 5.464 | 7.74 | 11.628 | 14.409 | 18.868 | 23.81 | 30.12 | |
| 50mm | 1.03 | 1.45 | 2.87 | 5.155 | 7.299 | 11.261 | 13.624 | 17.857 | 22.727 | 28.409 |
| 45mm | 0.958 | 1.34 | 2.671 | 4.84 | 6.859 | 10.504 | 12.821 | 17.241 | 21.739 | |
| 40mm | 0.881 | 1.23 | 2.47 | 4.533 | 6.41 | 10.288 | 12.107 | 16.667 | 20.747 | |
| 35mm | 0.804 | 1.12 | 2.271 | 4.223 | 5.974 | 10 | 11.416 | 16.026 | 19.608 | |
| 30mm | 0.737 | 1.01 | 2.07 | 3.912 | 5.574 | 9.69 | 10.707 | 18.657 | ||
| 25mm | 0.66 | 0.897 | 1.871 | 3.66 | 5.252 | 8.17 | ||||
| 20mm | 0.598 | 0.812 | 1.711 | 3.411 | 4.892 | |||||
| 16mm | 0.448 | 0.743 | 1.59 | 3.211 | ||||||
Recommended Nuts & Washers for A325 Bolts
| Nuts | Washers | |||
|---|---|---|---|---|
| Type 1 | Type 3 | Type 1 | Type 3 | |
| Plain | Galvanized | Plain | ||
| A563C, C3, D, DH, DH3 | A563DH | A563C3, DH3 | F436-1 | F436-3 |
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