Shoulder Screw
Source shoulder screw from India's verified manufacturers and exporters on Himalay. Browse the full range for industrial and export applications.
About Shoulder Screw
Shoulder screws — also called shoulder bolts or stripper bolts — are precision fasteners with an unthreaded cylindrical shoulder of controlled diameter and length between the head and a smaller threaded end. The ground shoulder acts as a shaft, dowel, axle or pivot, so the screw doubles as a locating and bearing element rather than just a clamp. They are common in linkages, rotating arms, pulleys, bushings and stripper plates on stamping dies, where a part needs to pivot or slide on the shoulder while the thread anchors it. The shoulder (commonly socket-head form to ISO 7379 / DIN ISO 7379, with inch equivalents to ASME B18.3) is typically held to a close tolerance such as h8 or h9 so it runs cleanly in a mating bore or bushing. Standard shoulder diameters step in defined increments (for example 6, 8, 10, 12, 16 mm) each with a fixed smaller thread size. Material is usually alloy steel hardened to a high core strength for wear and fatigue resistance, with stainless variants where corrosion matters; the shoulder surface is generally ground and may be plated. Shoulder diameter tolerance, length and head height all affect fit and travel. On the configuration side, the controlling variables are shoulder diameter and its tolerance class (commonly h8 or h9) for the running fit, shoulder length for the travel and stack-up, the paired thread size, and surface finish on the ground shoulder; head height and socket size follow the clearance and drive tool. Manufacturers generally verify shoulder diameter, length and hardness by dimensional inspection on a sampling basis. Where specified, Himalay coordinates material traceability, hardness and dimensional inspection reports, salt-spray corrosion data and RoHS/REACH declarations, coordinated as part of the standard order flow.
