SPECIAL FASTENERS MANUFACTURED TO SUIT CUSTOMERS’ REQUIREMENTS:
- To drawings
- To customer specifications
- With additional testing
- In unusual materials
- With unusual threads
- With unusual dimensions/tolerances
Types of fasteners manufactured include:
- Hex bolts
- Hex setscrews
- Hex nuts
- Nuts – round, cap
- Socket capscrews
- Grub screws
- Socket countersunk screws
- Engineer studs
- Wasted studs
- Studbolt assemblies
- 12 point (ferry head) bolts
PRODUCT DIMENSIONAL STANDARDS
| BOLTS AND SETSCREWS (NORMAL AND HEAVY SERIES) | ANSI | B18.2.1 | |||
| DIN | 931 | 933 | |||
| BS | 1083 | 1768 | 1769 | 3692 | |
| ISO | 4014 | 4017 | |||
| SOCKET CAPSCREWS (1936 & 1960 SERIES) | |||||
| ANSI | B18.3 | ||||
| DIN | 912 | 913 | 916 | 6912 | |
| BS | 2470 | 4168 | |||
| ISO | 4762 | ||||
| STUDBOLTS | |||||
| ANSI | B16.5 | ||||
| DIN | 975 | 976 | |||
| BS | 4882 | ||||
| NUTS (NORMAL AND HEAVY SERIES) | |||||
| ANSI | B18.2.2 | ||||
| DIN | 934 | ||||
| BS | 1083 | 1768 | 1769 | 3692 | |
| ISO | 4032 | ||||
| ENGINEER STUDS | DIN | 938 | 939 | 2510 | |
| BS | 2693 | 4439 | 4882 | ||
| WASHERS | Flat | Tab | Spring | Special designs |
THREAD FORMS
| All fasteners can be supplied with the following thread forms: | ||
| METRIC | Metric fine | Metric coarse |
| UN | UNC | UNS |
| UN8 | UNF | |
| WHITWORTH | BSW | BSF |
ANCILLARY processes
| HEAT TREATMENT | Quenching and tempering | Thru Hardening |
| Normalising | Solution Annealling | |
| Nitriding | Precipitation Hardening | |
| Case Hardening | ||
| COATINGS | Zinc | Phosphate |
| Zinc Nickel | Molykote | |
| Hot Dip Galv | Sherardizing | |
| PTFE/Xylan/Xylar/Teflon | Cadmium |
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