1960 Series 18-8 Stainless Steel Socket Head Cap Screws with Nylon Insert

1960 Series 18-8 stainless steel socket head cap screws with nylon insert combine the compact strength of an internal hex socket head cap screw with a factory-installed nylon locking element that provides prevailing torque during installation. The nylon insert helps increase resistance to thread loosening caused by vibration, repeated movement, and dynamic loading while allowing the fastener to remain removable for future maintenance and service.

Manufactured from 18-8 stainless steel, these socket head cap screws provide general corrosion resistance for many industrial environments exposed to moisture, humidity, or routine washdown. They are commonly specified for machinery, automation equipment, conveyors, robotics, pumps, instrumentation, industrial enclosures, processing equipment, fixtures, maintenance repairs, and OEM assemblies where both corrosion resistance and additional thread retention are desired.

The cylindrical socket head provides high clamping capability while requiring less wrench clearance than many externally driven fasteners. Proper fastener selection should consider thread size, screw length, head dimensions, hex socket size, mating-thread engagement, installation access, operating environment, and assembly requirements. The nylon insert provides prevailing torque but should not be considered a substitute for proper joint design or installation practices.

Cold Headers supplies 1960 Series 18-8 stainless steel socket head cap screws with nylon insert in a broad range of inch thread sizes and lengths, including uncommon and difficult-to-source configurations. Individual product pages provide verified thread size, screw length, nominal body diameter, head diameter, head height, hex socket size, and additional engineering information where available.

Why Choose 1960 Series Socket Head Cap Screws with Nylon Insert?

  • Factory-installed nylon insert: Provides prevailing torque to help resist thread loosening.
  • 18-8 stainless steel: Offers general corrosion resistance for many industrial environments.
  • Internal hex drive: Allows installation where external wrench clearance is limited.
  • Cylindrical socket head: Suitable for compact machinery and equipment assemblies.
  • Verified engineering dimensions: Product pages provide thread size, length, head dimensions, and hex socket size where available.

Selecting the Correct Nylon Insert Socket Head Cap Screw

Begin by confirming the required thread size and screw length. Review the head diameter, head height, hex socket size, mating-thread specifications, installation access, and assembly requirements before selecting a fastener. Final selection should reflect the mechanical loading, environmental conditions, and the desired level of prevailing torque for the application.

Cold Headers Inc. has supplied specialty industrial socket fasteners since 1962. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals locate exact sizes, uncommon lengths, and difficult-to-find socket head cap screws with nylon insert without unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.

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4-40 x 1/4 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert
List Price (per 100 pieces) $91.00
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4-40 x 3/8 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert
List Price (per 100 pieces) $92.00
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4-40 x 1/2 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert
List Price (per 100 pieces) $93.00
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4-40 x 5/8 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert
List Price (per 100 pieces) Call or Email for Pricing
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4-40 x 3/4 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert
List Price (per 100 pieces) Call or Email for Pricing
Description N/A

4-40 x 1/4 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. The pellet presses against the mating thread to provide prevailing torque without changing the socket head geometry.

Typical applications include washdown conveyors, stainless equipment frames, and guarded production machinery, where the exact thread and length help match drawings, service records, and replacement needs. The 18% chromium and 8% nickel austenitic stainless material is used for general corrosion resistance and a clean appearance in ordinary industrial environments.

When chloride or saltwater exposure controls material selection, ask about 316 stainless nylon-insert cap screws as a non-catalog request. Cold Headers has supplied specialty socket fasteners since 1962 and helps source exact stainless sizes and uncommon lengths. 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: 4-40
  • Length: 1/4 in.
  • Drive Type: Internal Hex
  • Locking Feature: Nylon insert providing prevailing torque
  • Nylon Insert Diameter (P): 1/16 in.
  • Nylon Insert Location (N): 7/64 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.

 		N/A

4-40 x 3/8 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert is built for drawings that call for both stainless material and prevailing-torque thread locking. The pellet presses against the mating thread to provide prevailing torque without changing the socket head geometry.

In food-processing frames, sanitation-adjacent machinery, or equipment covers, the internal hex drive keeps installation compact while the insert adds thread-friction locking action. The 18% chromium and 8% nickel austenitic stainless material is used for general corrosion resistance and a clean appearance in ordinary industrial environments.

For rounded exposed heads with the same locking concept, review 18-8 Button Head Socket Cap Screws with Nylon Insert. For non-catalog pellet positions or unusual sizes, in-house pelletizing at the Chicago facility gives Cold Headers added sourcing flexibility.

Technical Highlights

  • Series: 1960 Series
  • Material: 18-8 Stainless Steel
  • Thread Size: 4-40
  • Length: 3/8 in.
  • Drive Type: Internal Hex
  • Locking Feature: Nylon insert providing prevailing torque
  • Nylon Insert Diameter (P): 1/16 in.
  • Nylon Insert Location (N): 7/64 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.

 		N/A

4-40 x 1/2 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert gives machine builders a corrosion-resistant socket cap screw with an integral nylon insert. Nylon contact at the thread adds frictional resistance while preserving the standard internal hex drive arrangement.

This size is often reviewed for beverage filling equipment, changeover tooling, and stainless guide assemblies 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 rounded exposed heads with the same locking concept, review 18-8 Button Head Socket Cap Screws with Nylon Insert. Since 1962, Cold Headers has helped buyers locate specialty socket fasteners for production, repair, and distributor requirements.

Technical Highlights

  • Series: 1960 Series
  • Material: 18-8 Stainless Steel
  • Thread Size: 4-40
  • Length: 1/2 in.
  • Drive Type: Internal Hex
  • Locking Feature: Nylon insert providing prevailing torque
  • Nylon Insert Diameter (P): 1/16 in.
  • Nylon Insert Location (N): 7/64 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.

 		N/A

4-40 x 5/8 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert supports compact internal-hex fastening where a backed-out screw would create a service problem. Nylon contact at the thread adds frictional resistance while preserving the standard internal hex drive arrangement.

Use it for packaging machinery, motion guards, or access panels after confirming thread engagement, drive access, and the mating material. 18-8 stainless is a practical choice for ordinary moisture exposure, washdown-adjacent machinery, and equipment where a clean stainless finish is specified.

For rounded exposed heads with the same locking concept, review 18-8 Button Head Socket Cap Screws with Nylon Insert. Cold Headers can help confirm the exact-size 1960 Series stainless nylon-insert part before quoting availability. 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: 4-40
  • Length: 5/8 in.
  • Drive Type: Internal Hex
  • Locking Feature: Nylon insert providing prevailing torque
  • Nylon Insert Diameter (P): 1/16 in.
  • Nylon Insert Location (N): 7/64 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.

 		N/A

4-40 x 3/4 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert combines the familiar socket head profile with a nylon insert for added loosening resistance. The insert is positioned in the threaded body so the screw can develop prevailing torque during engagement.

Typical applications include pharmaceutical fixtures, inspection stations, and clean industrial work cells, where the exact thread and length help match drawings, service records, and replacement needs. 18-8 stainless is a practical choice for ordinary moisture exposure, washdown-adjacent machinery, and equipment where a clean stainless finish is specified.

For rounded exposed heads with the same locking concept, review 18-8 Button Head Socket Cap Screws with Nylon Insert. Need the pellet in a non-catalog size or position? In-house pelletizing gives Cold Headers a practical route for special requests.

Technical Highlights

  • Series: 1960 Series
  • Material: 18-8 Stainless Steel
  • Thread Size: 4-40
  • Length: 3/4 in.
  • Drive Type: Internal Hex
  • Locking Feature: Nylon insert providing prevailing torque
  • Nylon Insert Diameter (P): 1/16 in.
  • Nylon Insert Location (N): 7/64 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.
Brands N/A Cold Headers, Inc.
Diameter N/A 4-40
Length N/A 1/4 in N/A 3/8 in N/A 1/2 in N/A 5/8 in N/A 3/4 in
Material N/A 18-8 Stainless Steel
Quantity N/A 100
Package Type N/A Box
Note N/A Less Than Package Quantity Specified Plus 25%.