Metric Knurled Cup Set Screws

South Coast Fasteners, Inc. supplies metric knurled cup set screws manufactured to ISO 4029 standards for secure fastening under vibration and movement. Featuring a concave cup point with serrated knurling, these screws bite into the mating surface for superior holding power. They are commonly used in machinery, rotating assemblies, and heavy equipment where resistance to loosening is critical. South Coast Fasteners provides metric knurled cup set screws in hardened alloy steel with protective finishes to ensure consistent performance across industrial applications.

Order Premium Industrial Fasteners Today

Use the options below to order top-quality fasteners in the sizes and specifications you need. Questions about our fastener options? Contact our office in Anaheim, CA today, and our team will be happy to assist you. Whether you need repeat bulk orders or one-off small batch purchases, South Coast Fasteners has you covered for all your industrial fastener supplies.

Types of Metric Knurled Cup Set Screws We Offer

Metric Knurled Cup Point Socket Set Screw, 45H ISO 4029, Thermal Black Oxide

These 45H alloy steel screws feature a knurled cup point that enhances grip by cutting into the mating surface. The design resists loosening under vibration, making them ideal for rotating equipment, gears, and high-load assemblies. Finished in thermal black oxide, they deliver a smooth dark surface with mild corrosion resistance and added wear protection.

Material Options

South Coast Fasteners stocks metric knurled cup set screws in hardened alloy steel for maximum durability and holding strength.

Alloy Steel 45H

45H alloy steel provides the hardness and tensile strength needed for set screws designed to resist vibration and torque. The knurled cup point penetrates the mating surface effectively, ensuring assemblies remain tight under stress. These screws are relied upon in machinery, automotive, and heavy equipment applications where security and longevity are critical.

Available Finishes

South Coast Fasteners offers metric knurled cup set screws in finishes that add protection and extend service life.

Thermal Black Oxide

Thermal black oxide produces a dark, uniform finish that provides mild corrosion resistance. It helps retain oil for lubrication, improving wear resistance in equipment subject to frequent adjustment or movement. This finish is valued in industrial and machinery assemblies where durability and clean appearance both matter.

Why Choose South Coast Fasteners?

South Coast Fasteners is trusted by industries that depend on secure fastening solutions. Our knurled cup set screws are manufactured to strict standards, ensuring consistent performance in demanding environments. Customers count on us for reliable stock, quick turnaround, and the expertise to match the right fastener to the job.

Order Metric Knurled Cup Set Screws Online Today

Order metric knurled cup set screws from South Coast Fasteners with confidence, knowing that stock is always available. Our simple ordering process makes it easy to select the correct size, grade, and finish. Whether for machinery, automotive assemblies, or heavy equipment, we deliver quickly and provide dependable support for every order.