Serrated Lock Nut, 5/16"-18, 18-8 Stainless Steel, Not Graded, Plain, 50 PK

CONTRACTOR SELECT — Lock Nuts — Serrated Lock Nut, 5/16"-18, 18-8 Stainless Steel, Not Graded, Plain, 50 PK

CONTRACTOR SELECT Lock Nuts built for consistent performance in maintenance, inspection, and replacement work.

Quick specs

• Material: 18-8 Stainless Steel
• Finish: Plain
• System of Measurement: Inch
• Thread Size: 5/16"-18
• Manufacturer Part Number: U51108.031.0001
• UPC: -

Product information

• Manufacturer Part Number: U51108.031.0001
• UPC: -
• Country of Origin: Multiple

Dimensions

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

Details

• Pack Size: Small Pack
• Fastener Thread Type: UNC (Coarse)
• Nut Style: Self Locking Flange Nut - Serrated
• Basic Material: Stainless Steel
• Nut Standards: IFI-145
• Material Grade: 18-8
• Type: Self Locking Flange Nut
• Fastener Finish: Plain
• Fastener Thread Direction: Right Hand
• CAD Available: Yes
• Item: Lock Nut
• Hex Type: Flange Hex
• Lock Type: Serrated
• Material: 18-8 Stainless Steel
• Material Grade/Class: Not Graded
• Finish: Plain
• Standards: IFI-145
• System of Measurement: Inch
• Thread Direction: Right Hand
• Thread Type: UNC

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

Recommended for maintenance and repair workflows and selected for dependable day-to-day use.

Highlights

• 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.
• Clear specification formatting helps reduce ordering mistakes.

Notes: Review application constraints and installation requirements to ensure the part meets your needs.