MS21042-4 Cadmium-Plated Steel Bolt, Steel Self-Locking Nuts (No Nylon Collar) Type, 1⁄4 -28 Size

The MS21042-4 is a high-performance self-locking nut designed for reliable fastening in demanding conditions. Featuring a robust steel construction without a nylon collar, it provides a secure grip on bolts, ensuring stability and safety in high-temperature applications up to 1200˚ F. This nut is ideal for aerospace and industrial uses where durability and strength are paramount.

Features
• Self-locking design for enhanced grip and stability
• High-temperature resistance up to 1200˚ F
• Available in cadmium-plated steel, stainless steel, and silver-plated stainless steel

Benefits
• Prevents loosening under vibration and thermal expansion
• Durable materials ensure long-lasting performance
• Versatile applications in aerospace and industrial settings

Specifications
• Diameter: 1/4 to 0.28 in
• Dash Number: 4
• Thread Direction: Right Hand
• Width Across Flat: 0.304 to 0.316 in
• Height: 0.204 to 0.219 in
• Nut Type: Hexagonal
• Material: Steel
• Thread Size: 1/4-28
• Finish: Cadmium
• Thread Type: UNF-3B
• Temperature Rating: 450 deg F
• Domestic/Import: Domestic

Technical Information
• FAA-STD Approved
• MIL-S-8879 Qualified
• QQ-P-416 Type 2 Class 2