Top Lock Distorted Thread Lock Nut, 5/16"-18, Steel, Grade C, Yellow Zinc, 17/64 in Ht, 100 PK

CONTRACTOR SELECT — Lock Nuts — Top Lock Distorted Thread Lock Nut, 5/16"-18, Steel, Grade C, Yellow Zinc, 17/64 in Ht, 100 PK

Designed for professional use, this CONTRACTOR SELECT Lock Nuts helps keep parts and tooling consistent across routine service tasks.

Quick specs

• Material: Steel
• Finish: Yellow Zinc
• System of Measurement: Inch
• Thread Size: 5/16"-18
• Manufacturer Part Number: U12920.031.0001
• UPC: -

Product information

• Manufacturer Part Number: U12920.031.0001
• UPC: -
• Country of Origin: Multiple

Dimensions

• Thread Size: 5/16"-18
• Hex Height: 17/64 in
• Hex Width: 1/2 in
• Dia./Thread Size: 5/16"-18
• Nut Height: 17/64 in
• Width Across Flats: 1/2 in

Details

• Nut Style: Top Lock
• Item: Lock Nut
• Hex Type: Standard Hex Top Lock
• Lock Type: Top Lock Distorted Thread
• Material: Steel
• Material Grade/Class: Grade C
• Finish: Yellow Zinc
• Standards: IFI-100/107
• System of Measurement: Inch
• Thread Direction: Right Hand
• Thread Type: UNC
• Rockwell Hardness: HRC24-C32
• Pack Size: Small Pack
• Basic Material: Steel
• Fastener Finish: Zinc Yellow
• Type: Top Lock
• Fastener Thread Direction: Right Hand
• Nut Standards: IFI-100/107
• Fastener Thread Type: UNC (Coarse)
• Material Grade: Grade C

This Lock Nuts is designed to support reliable operation in demanding environments.

Recommended for inventory replenishment and standardization and chosen for predictable fit and professional handling.

Highlights

• Organized for straightforward purchasing and stocking.
• 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.

Notes: Verify measurement standards, tolerances, and compatibility with existing assemblies before purchase.