Specifications
| Size range | M3-M52 |
|---|---|
| Alloy steel | up to Grade 12.9 |
| S/s 316l | up to A4-80 |
Wedge-locking washer pair (cams one side, radial teeth other) that secures joints via tension, not friction; installed between bolt/nut and joint material to maintain clamp load without retightening. Capability M3-M52; alloy steel up to Grade 12.9; S/S 316L up to A4-80. Custom mating-part designs available; popular sizes stocked.
A2LA (Cert No. 2706.01, issued by A2LA, valid until 2028-06-30); Q-LAB; SGS
| Size range | M3-M52 |
|---|---|
| Alloy steel | up to Grade 12.9 |
| S/s 316l | up to A4-80 |

SPEC Products Corp.
Special screws, bolts and cold-formed fasteners since 2001. One-stop sourcing across 20,000+ items a year, backed by an in-house bolt factory and an A2LA-accredited lab.
Special automotive and industrial fasteners via cold forming, thread rolling, turning and stamping: special screws and bolts (M2.5 to M24, up to 200 mm), clinch studs, sleeve screws, rivets, U-bolts and wire...