| Available materials | carbon steel, iron, stainless steel, brass copper, aluminum, zinc alloy, bronze |
| Specifications | M3-M30, the length with 350mm, we also can produce according to customer's design |
| Surface finish | Zn-plated, Ni-plated, passivity, HDG (hot dip galvanizing), chromate, chrome plated, black oxide, polish, plain, copper coated, bronze plating, Dacromet, anodic oxidation |
| Head type | pan head, round head, recessed head, ball head, button head, flat head, fillister head, oval head, truss head, counter sunk head, indented hexagon head, hex flange head, square head, T-head |
| Drive type | slot, Phillips, Phillips tamper-resistant, square, square recess slot, quadrex, pozi, torx, hex socket, tri-wing, spanner, one way removal tool |
| Thread measure | metric or inch size |
| Heat treatment | tempering, carburized, spheroidizing, stress relieving |
| Standard | tempering, carburized, spheroidizing, stress relieving |
| Standards | SGS, GB, TR |
| Manufacture process | heading/threading/secondary machine/heat treatment/plating/packing/shipping |
| Grade | 6.8, 8.8, 10.9, 12.9 |
| Sample availability | we can send the samples to you within 7 days if it is available for you, if we have no existing models, the samples will be send within 10-15 days after received your tooling fee, and the sample shipping charge is collected |
| Lead-time | 10-15 working days usually, and it based on which products you order and the quantity |
| Quality authentication | DIN, GB, JIS |
| After sales | we will follow up goods for every customer and help to solve problem after sales |
Best regards,
