BOLT: HEX HD,ST (P/N 401-971) - New Surplus

The 401-971 is a hex-head steel bolt conforming to MS20074-05-06 specifications. This drilled-head fastener provides secure fastening in aircraft structural and mechanical assemblies. Commonly used in alternator support brackets and engine accessory mounting on Piper PA-28-181 aircraft.

The bolt features a hex head design with a drilled shank for safety-wire retention, meeting Military Standard MS20074 requirements for aviation fastening. Installation should follow aircraft maintenance manual torque specifications and acceptable practices outlined in AC 43.13-1B.

What is the BOLT: HEX HD,ST (P/N 401-971)?

The 401-971 is a hex-head steel bolt conforming to MS20074-05-06 specifications. This drilled-head fastener provides secure fastening in aircraft structural and mechanical assemblies.

Does the 401-971 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT: HEX HD,ST conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the 401-971 manufactured from?

Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the 401-971.

Can I order the 401-971 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT: HEX HD,ST is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.