The diameter of the shoulder of shoulder screw is equal to or wider than its thread. Our shoulder screws are mostly customized. Precision shoulder screws can be made into slotted heads, Phillips heads, internal hexes and so on. The alignment accuracy of screw is extremely important during fastening, which means a very tiny tolerance of the shaft that Gaoyi can make reaches 0.02 meanwhile the concentricity of screw can reach 0.05.
Stainless steel 18-8, 316 Stainless, Titanium alloy, Monel, Brass and Aluminum.
|Type||Shoulder Diameter||Thread Size||Shoulder Length|
|Inch||1/8'' to ½''||4-40 to 3/8-16||1/8'' to 1 ½''|
|Metric||1.8 mm to 25 mm||M1.2 to M24||4 mm to 70 mm|