Countersunk Screws
ASTM A193 Grade B7 Countersunk Screws
Boltport is a manufacturer and supplier of ASTM A193 Grade B7 Hex Socket Countersunk Screws as per ASME B18.3, B18.3.5M, DIN 7991, ISO 10642 and UNI 5933 dimension standards. We offer countersunk screws in complete range of metric and imperial sizes with coarse, fine and extra fine threads. These B7 Countersunk Screws are produced with full compliance to requirements of ASTM A193 specification and are suitable for high tensile bolting in high-pressure or high-temperature service environment.
Visit Specification page to find information on ASTM A193 Grade B7 chemical composition, applicable heat treatment, mechanical properties such as tensile strength, yield strength, hardness requirement, product marking, and applicable product standards.
For a quick quote on A193 Grade B7 Countersunk Screws, please contact our sales team at estimation@ferrobend.com
Countersunk Screw Sizes & Thread Specifications
| Metric Sizes | M1.6 – M20 |
| Inch Sizes | #0 to 1-1/2" |
| Metric Threads | ISO, ASME |
| Imperial Threads | ASME, BSW, BSF |
| Thread Standards | ISO 68-1, ISO 268, ISO 724, ASME B1.1, ASME B1.13M, BS 84, BS 3643 |
Countersunk Screw Standards
| Fastener Dimensional Standards | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product | DIN | ISO | ASME | UNI | BS | ||||
| Imperial | Metric | Imperial | Metric | ||||||
| Countersunk Screws | DIN 7991 | ISO 10642 | ASME B18.3 | ASME B18.3.5M | UNI 5933 | BS 2470 | BS 4168-8 | ||
