5/8-11 x 3/4 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert pairs stainless construction with a nylon locking pellet for joints exposed to moisture and vibration. Its locking element supports service where a standard all-metal cap screw may need an added thread-locking feature.
This size is often reviewed for pump skids, utility frames, and serviceable covers when a stainless cap screw must retain a familiar socket head form. The 18% chromium and 8% nickel austenitic stainless material is used for general corrosion resistance and a clean appearance in ordinary industrial environments.
For countersunk installations, 18-8 Flat Head Socket Cap Screws with Nylon Insert keep the locking feature in a different head style. Since 1962, Cold Headers has helped buyers locate specialty socket fasteners for production, repair, and distributor requirements. The 1960 Series name identifies the modern ASME B18.3 head-proportion standard for socket head cap screws, successor to the older 1936 series, not a year of manufacture.
Technical Highlights
- Series: 1960 Series
- Material: 18-8 Stainless Steel
- Thread Size: 5/8-11
- Length: 3/4 in.
- Drive Type: Internal Hex
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 3/16 in.
- Nylon Insert Location (N): 5/16 in. +/-1/2 pitch
- Head Dimensions: ASME B18.3, 1960 Series
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
