Home > Spring Washers
| Allen CSK Screws Standard | ISO 7380, DIN7991, DIN 912 ASTM, ANSI, JIS, EN, AS, GB |
|---|---|
| DIN 912 carbon steel 12.9 Hexagon allen head cap screw Sizes | M1.6, M2, M2.5, M3, M3.5, M4, M5, M6, M7, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30 |
| Screw Head | Pan head, flat head, oval head, hex head, phillips head |
| Din7991 A2 Ss Countersunk Screw Csk Allen Socket Screws Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
| Thread Requirements | ASME B1.1, UNC & UNF, Class 2A |
| Size | Dia | Thread Dia | Head Dia (mm) | Head Height (mm) | Allen Key Size | Thread Length |
|---|---|---|---|---|---|---|
| M3 | 3mm | 2.86mm | 5.7 – 6 | 0.95 – 1.2 | 2 | 30mm |
| M4 | 4mm | 3.82mm | 7.64 – 8 | 1.5 – 1.8 | 2.5 | 40mm |
| M5 | 5mm | 4.82mm | 9.64 – 10 | 2.05 – 2.5 | 3 | 40mm |
| M6 | 6mm | 5.7mm | 11.57 – 12 | 2.25 – 2.5 | 4 | 40mm |
| M8 | 8mm | 7.64 | 15.57 – 16 | 3.2 – 3.5 | 6 | 40mm |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge production facilities strategically positioned in the New Zealand, we offer an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
Reach out to us for a fast quote tailored to your requirement.
We supply these Spring Washers conforming to DIN, ISO, JIS or ANSI Standard.
Prevents Loosening: A key benefit of spring washers is their ability to stop nuts and bolts from working loose because of vibrations. The spring effect maintains steady tension, holding the assembly firmly in place as time passes.
Absorbs Shock and Vibration: Spring washers function as shock absorbers and dampers, taking in vibrations and impacts that might otherwise harm the assembly or equipment.
Compensates for Thermal Expansion: They make up for thermal expansion and contraction that occurs in assemblies as temperatures change. This keeps the joint or connection intact by modifying tension as needed.
Reduces Wear and Fatigue: Because they spread the load more uniformly across the bolted joint, spring washers cut down on wear and fatigue affecting both the fastener and the material being secured.
Space Saving: Relative to other ways of supplying tension, like fitting longer bolts or thicker nuts, spring washers are small and can be applied in confined spaces where alternative solutions may not work.
Spring Washers uses are as varied as the sectors they support, led chiefly by the aerospace, railway, construction and automotive sectors alongside petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
