ASTM A453 Grade 660 Countersunk Screws
Boltport offers ASTM A453 Grade 660 Countersunk Screws in Class A, B, C & D, manufactured to DIN 7991, ISO 10642, ASME B18.3, B18.3.1M & UNI 5933 standards, in metric and inch sizes with UNC, UN, UNF, UNEF, ISO, BSW & BSF threads. Grade 660 countersunk screws are available with full thread; part threads and custom thread design.
| ASTM A453 Grade 660 Countersunk Screws |
| Tensile Class |
|
B |
C |
D |
Countersunk Screw Sizes & Thread Specifications
| Metric Sizes |
M6 to M152 |
| Inch Sizes |
ΒΌ" to 8" |
| 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
