Black Torx Truss Head Washer Integrated Shoulder Screw One-Piece Flange Step Bolts OEM Custom Machining One-Stop Fastener Kitting Service

These Torx truss head shoulder screws feature an integrated flange washer, eliminating separate gasket assembly and improving installation efficiency. Precision machined shoulder section provides stable spacing, positioning and limiting function. Torx drive prevents tool slipping for reliable torque control. Black surface treatment delivers anti-corrosion performance and uniform appearance. Widely used for automation equipment, electronic housings, cabinet assemblies and fixture structures. We support customized size, material and surface finishing. Complete one-stop service: matching nuts & washers, private barcode labels, instruction manuals, customized packaging and fastener kitting. All products pass strict dimensional inspection. Source all assembly fasteners in one order to simplify your procurement.