Drilled head bolts in aircraft The "grip" is the unthreaded portion of the shank. The hex head aircraft bolt (AN-3 through AN-20) is an all-purpose structural bolt used for general applications involving tension or shear loads where a light drive Hex head, grade 8, aircraft bolts, made of high-strength alloy steel (type 8740 most commonly used). 062 Grip . Bolts with both a drilled head and a drilled shank (AN3H-4) are also available. Prop Bolt 8X80MM Drilled Head For Safety Wire. The letter “H” after AN (ANH) identifies a drilled head bolt. 144 = head style; diameter and thread - 1/4-28 bolt, internal wrenching. and the 4 refers to the nominal length of 17/32-in. Also, bolt length may vary by +1/32" to -1/64". The bolt also has an undrilled shank which means it cannot accept a cotter pin. S. Includes drill bushings & 2 cobalt drills. 6 Using safety wire pliers grab the 2 wires where they reach the halfway of the second bolt and twist them 2-9 times depending on the diameter of the wire used, the thicker the wire is the less turns needed. Made of 6061T6 hard anodized aluminum for durability. NAS144DH-22. Length, grip, diameter, drilled head, and shank are the different variables within an AN bolt. NAS = National Aircraft Standard. To add a bit more confusion, if the dash number defining the length of the bolt has two digits, the first digit is the length in whole inches and the second number the length in The AN-73 drilled head bolt is like the standard hex bolt, but has a deeper head, which is drilled to receive wire for safetying. An "A" placed before the material code letter would indicate that the head is drilled for safetying. 22 = screw length in 16ths of an inch - 1 3/8 Bolt Drilled Head AN3H-4 Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). FIGURE 2: AN Aircraft Bolt Dimensions AN Aircraft Bolt Dimensions NAS1003-1020 bolt, hexagon head drilled or undrilled NAS1083-1088 bolt, 100° flush head close tolerance NAS1220 bolt, 100º flush head,short thread,dovetail slot Chief aircraft featured Hardware / Fasteners categories. We specialize in Drilled Head Bolts. 070" hole drilled through the head for safety wire and 3/8-24 UNF threads. "C" represents Type 431 Stainless Steel (contains iron which is magnetic). So, this particular bolt is a 1/4 inch diameter AN bolt that is 1/2 inch long measured from just under the head to the tip of the shank. AN bolts are industrial aircraft bolts and are manufactured according to Air Force-Navy specs. MS bolts come in hex head and internal wrenching styles. Minimum tensile strength 125,00 AN6H bolts have a 0. Panel Fastener Tools. AN4H4A AIRFRAME BOLT - 1/4 X 17/32 INCH. We can drill bolts from 1/4" - 1 1/4". Made in U. 006 inch clearance for a 5/8 inch hole, and other sizes in proportion). Cadmium plated per specification QQ-P-416A, Type II, Class 3. The 3 in these bolt designations refers to the shank diameter of 3/16-in. General Purpose Bolts. Close Tolerance Bolts AN bolts come in three head styles - hex head, clevis, and eyebolt. Eric Cleveland answered on October 16, 2024 store manager Also, bolt length may vary by +1/32″ to -1/64″. 344 Length Ship To: $1. AN Bolt Selector Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). Aircraft machine bolt, drilled head, undrilled shank Material: Carbon steel, cadmium plated Length: 17/32 inch Thread: 1/4-28 Diameter: 1/4 inch Grip: 1/16 inch Wrench Size: 7/16 inch AN6 Bolts ( 3/8-24 ) Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). The hex head aircraft bolt (AN-3 through AN-20) is an all purpose structural bolt used for general applications Specify bolts to have undrilled shank by adding letter "A" after the dash number. 641 inch thread length regardless of grip length. View as Grid List. AN5H-14A Drilled Head Bolt Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). HD AN4 Drilled Cad-Plated Steel Airframe AN Bolt, 1/4-28 "C" represents Type 431 Stainless Steel (contains iron which is magnetic). drilled shank hex head bolts (AN101901 through AN102800), drilled hex head (one hole) bolts (AN102801 through AN103700), and drilled hex head (six holes) bolts (AN103701 through AN104600). Minimum tensile strength 125,000 PSI. The bolts are centerless ground and threaded after heat treatment. Apr 21, 2016 · Standard AN bolts come in three configurations: AN3-4A undrilled, AN3-4 drilled shank, and AN3H-4A drilled head. Aircraft Panel Fasteners. Bolt Drilled AN3-4 Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). The hex head aircraft bolt (AN-3 through AN-20) is an all purpose structural bolt used for general applications involving tension or shear loads where a light drive fit is permissible (0. In constructing you airplane, you will not encounter many bolts larger than an AN8 (1/2 inch diameter). Note: Drilled bolts listed above are drilled shank only. AN bolts come in three head styles - hex head, clevis, and NAS bolts are available in hex head, internal wrenching, and countersunk head styles. [4] Bolt Drilled AN3-11 Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). 006 inch AN Bolt Selector Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). MS20073-03-03 . January 24, 2025 Glad to have the drilled-head option for safety wire install. MS200073 Drilled Head Bolts: MS20073-03-02. 10 Items HW-Bolt HD AN4-Drilled. They are similar to each other except for the holes in the head and shank. If the letter "C" follows the AN designation (ANC) that identifies a stainless Dec 1, 2024 · Pull together until the two ends are firm and tied around the first drilled-head bolt. All AN6H bolts have a 0. Dec 7, 2017 · AN345 98 Drilled Head 92,95 I INSTRUMENT, Nuts 104 AN350 96 External Wrenching 95 Screws 108-113 AN360 96 Eyebolt 93 K KITS - Hardware 124-127 AN361 100 Internal Wrenching 95 L Lockwire 131 AN362 100 NAS Bolts 94-95 LORDMOUNTS 42-43 AN363 96 Shear 94-95 M Machine Screws 108-112 AN364 96 Stainless 90 Mandrels 134 [Figure 5-19] NAS bolts are available in hex head, internal wrenching, and countersunk head styles. AN6H-32A Drilled Head Bolt Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). A. 15% discount on qty of 50-99 20% discount on qty of 100+ Note: Drilled bolts listed above are drilled shank only. This thread length is designed to accommodate a full-height nut and one AN960-616 flat washer. (AN3H-15) See illustrated examples. DH = drilled head. Aircraft Spruce's personnel are The letter "C" would designate corrosion resistant steel. NAS bolts are available in hex head, internal wrenching, and countersunk head styles. Fits 3/16" to 5/8" dia. Hex head bolts (AN104601 through AN105500), drilled shank hex head bolts (AN105501 Feb 1, 1995 · The letter "H" after AN (ANH) identifies a drilled head bolt. 99. For bolts with drilled head add letter "H" after the AN number. The AN-3 and the AN-73 series bolts are interchangeable, for all practical purposes, from the standpoint of tension and shear strengths. Minimum tensile strength 125,00 This tool provides a fast, simple way to drill bolt heads with virtually no broken drill bits. We Stock many sizes and grades of HEX BOLTS, SOCKET CAP SCREWS including Grade 8, Grade 5, Metric, Stainless Steel. See table for conversion of length and/or grip to proper AN callout. If the letter “C” follows the AN designation (ANC) that identifies a stainless steel bolt. The length of AN aircraft bolts is measured from under the head to the end of the shank. They are manufactured from cadmium or zinc plated corrosion resistant steel, unplated corrosion-resistant steel, and anodized aluminum alloys. General Purpose Bolts . bolts & works on hex head bolts, header bolts, 12-pt countersink & Allen head cap screws. Panel Fastener Sets. AN6H-37A Drilled Head Bolt Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). hczxh ecbji fdbop yeib gqm cbp qdod xvamk ove zsy vyxkw tbsyi hnm vpikn hqsm