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Fasteners Material Specification | ASTM / ASME A/SA 193 / 194 |
Standard | DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards |
Fasteners/ Bolts Size | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160 |
Length | 3 mm to 200 mm |
Bolts, Studs Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
SCOPE OF MANUFACTURE |
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Fasteners In Form of: | Hex, Square, Round, Threading as per Gauge Etc. |
Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
bolting Test Certificate: | Manufacturer Test Certificate as per EN 10204 / 3.1 |
Fasteners finishing: | Zinc (yellow, white, blue, black), black oxide, Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET |
Production process | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
bolting materials Surface Coating: |
All surface finishes offered including Geomet & PTFE, Galvanised, Zinc, Electroless Nickel, Sherardized, Dacromet |
Popular Types of Bolts | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts etc. |
Popular Types of Nut | Hex Head Nut, Eye Nut, Dome Nut, Wing Nut, T Nut, Panel Nut, Lock Nut, Coupling Nut, Square Nut, Acorn Nut etc. |
Popular Types of Screw | Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc. |
Popular Types of Washer | Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer, Split Washer etc. |
Fasteners Packing: | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
BS 970: 1955 | Chemical Composition | |||||||
C % | Si % | Mn % | Ni % | Cr % | Mo % | S % | P % | |
EN3B | 0.25Max | 0.35Max | 1.0Max | – | – | – | 0.06Max | 0.06Max |
EN1A | 0.07/0.15 | 0.10Max. | 0.80/1.20 | – | – | – | 0.20/0.30 | 0.07Max |
EN8 | 0.35/0.45 | 0.05/0.35 | 0.60/1.00 | – | – | – | 0.06Max | 0.06Max |
EN9 | 0.50/0.60 | 0.05/0.35 | 0.50/0.80 | – | – | – | 0.06Max | 0.06Max |
EN16 | 0.30/0.40 | 0.10/0.35 | 1.30/1.80 | – | – | 0.20/0.35 | 0.05Max | 0.05Max |
EN19 | 0.35/0.45 | 0.10/0.35 | 0.50/0.80 | – | 0.90/1.50 | 0.20/0.40 | 0.05Max | 0.05Max |
EN24 | 0.35/0.45 | 0.10/0.35 | 0.45/0.70 | 1.30/1.80 | 0.90/1.40 | 0.20/0.35 | 0.05Max | 0.05Max |
Grade | Material | Size Range | Tensile Strength MPa min. | Proof Strength MPa min. | Core Rockwell Hardness | Yield Strength MPa min. | |
Min. | Max. | ||||||
4.6 | Low or Medium Carbon Steel | M5 – M39 3/16” – 1-1/2” | 400 | 225 | B67 | B99.5 | 240 |
8.8 | Medium Carbon Steel Q+T | M5 – M16 3/16” – 5/8” M18 – M39 11/16” – 1-1/2” | 800 830 | 580 600 | C22 C23 | C32 C34 | 640 660 |
10.9 | Alloy Steel Q+T | M5 – M39 3/16” – 1-1/2” | 1040 | 830 | C32 | C39 | 940 |
12.9 | Alloy Steel Q+T | M1.6 – M39 #0 – 1-1/2” | 1220 | 970 | C39 | C44 | 1100 |
Grade | Name | Werkstoff Number | ASTM | BS | Temperature Use |
Durehete 900 T22 | 42CrMo5.6 | 1.7233 | – | BS1506 631-850 | Up to 480ºC |
Durehete 950 T31 | 40CrMoV4.6 | 1.7711 | ASTM A193 B16 | BS1506 671-850 | Up to 510ºC |
Durehete 1055 T41 | 20CrMoVTiB4.10 | 1.7729 | – | BS1506 681-820 | Up to 570ºC |
25CrMo4 | – | 1.7218 | – | – | Up to 400ºC |
21CrMoV5.7 | – | 1.7709 | – | – | Up to 540ºC |
42CrMo4 | – | 1.7225 | ASTM A193 B7 | BS1506 630-860 | Up to 450ºC |