Step Screws, Double-Ended Bolts & Double-End Studs for Precision Clamping

Step Screws & Double-Ended Bolts

Kaybin machines custom step screws, double-ended bolts and double-end studs to drawing or sample for pumps, gearboxes, flanges and OEM assemblies. Each fastener is machined to the correct thread engagement and shoulder geometry so joints clamp correctly, maintain alignment under load and prevent leaks, gasket failure and misalignment in industrial equipment.

Function & Typical Applications

• Clamp housings, covers and flanges where threaded engagement is needed on one or both ends
• Provide precise shoulders for location, spacing and gasket compression
• Used on pumps, gearboxes, drive assemblies, manifolds and custom OEM brackets including engineering studs / double-end stud applications.
• Ideal where standard catalogue bolts do not match OEM geometry or material

Material Options

• Stainless steels (e.g. 304 / 316) for corrosion-prone and hygienic environments
• Carbon / alloy steels for higher strength and torque transmission
• Other grades on request to match existing OEM specs
• Material, hardness and surface finish are matched to your torque, preload and environment.

Operating Conditions

• Static or cyclic clamping in industrial equipment
• Wet, corrosive or outdoor duty (material-dependent)
• Applications where incorrect bolt geometry causes leaks, misalignment or gasket failure
• Correctly specified step screws improve joint integrity, extend gasket and bearing life and cut unplanned downtime.

Engineering Details Required

To manufacture the correct step screw or double-ended bolt, provide:

• Drawing or sample (preferred), or full dimensions:
• Overall length
• Thread sizes and lengths
• Shank / step diameters and shoulder positions
• Thread form and class (metric, UNC/UNF, etc.)
• Material grade and any heat treatment/coating (if known)
• Application (pump, flange, gearbox, etc.) and service environment

Kaybin then confirms material and geometry and machines fasteners to your exact specification for reliable bolted joints in industrial and OEM equipment.