CONTRACTOR SELECT — Lock Nuts — Nylon Insert Lock Nut, 5/16"-18, Steel, Grade A, Zinc Plated, 11/64 in Ht, 100 PK

This Lock Nuts from CONTRACTOR SELECT supports day-to-day operations where predictable fit and dependable handling matter.

Quick specs

• Material: Steel
• Finish: Zinc Plated
• Color: Clear
• Thread Size: 5/16"-18
• Manufacturer Part Number: 4CAP2
• UPC: -

Product information

• Country of Origin: Multiple
• Manufacturer Part Number: 4CAP2
• UPC: -

Dimensions

• Thread Size: 5/16"-18
• Hex Height: 11/64 in
• Hex Width: 1/2 in
• Width Across Flats: 1/2 in
• Nut Height: 3/8 in
• Dia./Thread Size: 5/16"-18

Details

• Finish: Zinc Plated
• Standards: ASME 18.18; ASME B1.1; ASME B18.16.4; ASTM F788; IFI-100/107; SAE J429
• System of Measurement: Inch
• Thread Direction: Right Hand
• Thread Type: UNC
• Rockwell Hardness: HRC 32 Max
• Pack Size: Small Pack
• Color: Clear
• Thread Fit: 2B
• Maximum Temperature: 250 Degrees F
• Resistance Properties: Chemical Resistant, Impact Resistant, Temperature Resistant
• Material Grade: Grade 2
• Nut Style: Nylon Insert Lock Nut - Flanged
• Material Quality Standards: ASTM F788
• Nut Standards: IFI-100/107
• Basic Material: Steel
• Fastener Thread Direction: Right Hand
• Insert Material: Nylon
• Fastener Finish: Zinc
• Type: Nylon Insert Lock Nut
• Fastener Thread Type: UNC (Coarse)
• Dimensional Standards: ASME 18.18, ASME B1.1, ASME B18.16.4, SAE J429
• Item: Lock Nut
• Hex Type: Flange Hex
• Lock Type: Nylon Insert
• Material: Steel
• Material Grade/Class: Grade A

This Lock Nuts is well-suited for replacement, upgrade, and stock-room use.

Recommended for facility operations and routine servicing and selected for dependable day-to-day use.

Highlights

• Suitable for maintenance, repair, and project-based procurement.
• Helps keep specifications consistent across replacements and replenishment cycles.
• Designed for professional use where predictable fit and handling are important.
• Works well in standardized part lists and preventative maintenance schedules.

Notes: Confirm fit, compatibility, and any site-specific requirements prior to ordering or installation.