Serrated Lock Nut, 5/16"-18, Steel, Grade A, Zinc Plated, 11/64 in Ht, 100 PK

CONTRACTOR SELECT — Lock Nuts — Serrated Lock Nut, 5/16"-18, Steel, Grade A, Zinc Plated, 11/64 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: Zinc Plated
• Color: Clear
• Thread Size: 5/16"-18
• Manufacturer Part Number: 3HDX3
• UPC: -

Product information

• UPC: -
• Country of Origin: Multiple
• Manufacturer Part Number: 3HDX3

Dimensions

• Dia./Thread Size: 5/16"-18
• Thread Size: 5/16"-18
• Hex Height: 11/64 in
• Hex Width: 1/2 in
• Flange Dia.: 0.6563 in
• Flange Thickness: 0.04 in
• Flange Diameter: 0.68 in
• Width Across Flats: 1/2 in
• Nut Height: 9/32 in

Details

• Thread Direction: Right Hand
• Thread Type: UNC
• Pack Size: Small Pack
• Rockwell Hardness: HRC 32 Max (Core), R15N 79 Min (Surface)
• Thread Fit: 2B
• Color: Clear
• Material Grade: Grade 2
• Fastener Finish: Zinc
• Nut Style: Self Locking Flange Nut - Serrated
• Fastener Thread Direction: Right Hand
• Fastener Thread Type: UNC (Coarse)
• Type: Self Locking Flange Nut - Serrated
• Material Quality Standards: ASTM F788
• Basic Material: Steel
• Dimensional Standards: ASME 18.18, ASME B1.1, ASME B18.16.4, SAE J429
• Nut Standards: IFI-145
• CAD Available: Yes
• Item: Lock Nut
• Hex Type: Swivel Flange Hex
• Lock Type: Serrated
• Material: Steel
• Material Grade/Class: Grade A
• Finish: Zinc Plated
• Standards: ASME 18.18; ASME B1.1; ASME B18.16.4; ASTM F788; IFI-145; SAE J429
• System of Measurement: Inch

This Lock Nuts is a practical option for maintenance teams and procurement.

Recommended for planned maintenance programs and well-suited for replacement, upgrade, and stock-room use.

Highlights

• Clear specification formatting helps reduce ordering mistakes.
• Organized for straightforward purchasing and stocking.
• Suitable for maintenance, repair, and project-based procurement.
• Helps keep specifications consistent across replacements and replenishment cycles.

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