AN4H bolts have a 0.046 hole drilled through the head for safety wire. They have a 1/4-28 UNF thread with 0.469 inch thread length on all sizes
AN4 Airframe Bolt - Drilled Head, 1/4-28 Thread
1/4-28 x 1.182 Titanium Airbus Aircraft Bolts ABS0114V4-13 Bolt 12
AN814-4, PLUG
S1844-1-2, SWITCH
Aircraft machine bolt, undrilled Material: Carbon steel, cadmium plated Length: 4-17/32 inch Thread: 1/4-28 Diameter: 1/4 inch Grip: 4-1/16 inch
AN4-44A AIRFRAME BOLT - 1/4 X 4-17/32 INCH - Univair Aircraft
AN4-22A Bolt - length 2-9/32 thread 1/4-28 - Military Fasteners
AN4-7 AIRFRAME BOLT - 1/4 X 29/32 INCH - Univair Aircraft Corporation
AN74A14 ENGINE BOLT - 1/4 X 1-17/32 INCH - Univair Aircraft
$2.34 Each, Length: 4-17/32in., grip: 4-1/16in., thread: 1/4-28, cadmium plated steel undrilled shank
Machine Bolt
Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). The bolts are centerless ground and
AN4-15A 1/4 x 28 Thread x 1 5/8 length Cad Plated Aircraft Bolt
1/4-28 x 1-1/32 ANC4 Hex Head Airframe Bolt, Corrosion Resistant
