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Military Standard MS21250H07004 Steel Drilled Head Bolt, Shear
Military Standard MS21250H07004 Steel Drilled Head Bolt, Shear
PART #: SGP134787MFR PART #: MS21250H07004Our Price: $14.84 (Each)QTY: Add to Cart -
Military Standard MS21250H07012 Steel Drilled Head Bolt, Shear
Military Standard MS21250H07012 Steel Drilled Head Bolt, Shear
PART #: SGP134788MFR PART #: MS21250H07012Our Price: $18.58 (Each)QTY: Add to Cart -
Military Standard MS21250H09014 Steel Drilled Head Bolt, Shear
Military Standard MS21250H09014 Steel Drilled Head Bolt, Shear
PART #: SGP134792MFR PART #: MS21250H09014Our Price: $175.02 (Each)QTY: Add to Cart -
Military Standard MS21250H08012 Steel Drilled Head Bolt, Shear
Military Standard MS21250H08012 Steel Drilled Head Bolt, Shear
PART #: SGP134791MFR PART #: MS21250H08012Our Price: $114.25 (Each)QTY: Add to Cart -
Military Standard MS21250H07022 Steel Drilled Head Bolt, Shear
Military Standard MS21250H07022 Steel Drilled Head Bolt, Shear
PART #: SGP134790MFR PART #: MS21250H07022QTY: Add to Quote -
Aeronautical Standard AN176-10A Steel Undrilled Shank & Head Bolt, Close Tolerance
Aeronautical Standard AN176-10A Steel Undrilled Shank & Head Bolt, Close Tolerance
PART #: SGP89084MFR PART #: AN176-10AOur Price: $11.17 (Each)QTY: Add to Cart -
Aeronautical Standard AN176-23 Steel Undrilled Head/Drilled Shank Bolt, Close Tolerance
Aeronautical Standard AN176-23 Steel Undrilled Head/Drilled Shank Bolt, Close Tolerance
PART #: SGP89092MFR PART #: AN176-23Our Price: $16.95 (Each)QTY: Add to Cart -
Aeronautical Standard AN176-27A Steel Undrilled Shank & Head Bolt, Close Tolerance
Aeronautical Standard AN176-27A Steel Undrilled Shank & Head Bolt, Close Tolerance
PART #: SGP89093MFR PART #: AN176-27AOur Price: $10.17 (Each)QTY: Add to Cart -
Aeronautical Standard AN176-13A Steel Undrilled Shank & Head Bolt, Close Tolerance
Aeronautical Standard AN176-13A Steel Undrilled Shank & Head Bolt, Close Tolerance
PART #: SGP89086MFR PART #: AN176-13AOur Price: $8.00 (Each)QTY: Add to Cart -
Aeronautical Standard AN176-14A Steel Undrilled Shank & Head Bolt, Close Tolerance
Aeronautical Standard AN176-14A Steel Undrilled Shank & Head Bolt, Close Tolerance
PART #: SGP89087MFR PART #: AN176-14AOur Price: $7.67 (Each)QTY: Add to Cart -
Aeronautical Standard AN176-15A Steel Undrilled Shank & Head Bolt, Close Tolerance
Aeronautical Standard AN176-15A Steel Undrilled Shank & Head Bolt, Close Tolerance
PART #: SGP89088MFR PART #: AN176-15AOur Price: $23.10 (Each)QTY: Add to Cart -
Aeronautical Standard AN176-21A Steel Undrilled Shank & Head Bolt, Close Tolerance
Aeronautical Standard AN176-21A Steel Undrilled Shank & Head Bolt, Close Tolerance
PART #: SGP89090MFR PART #: AN176-21AOur Price: $5.67 (Each)QTY: Add to Cart
Perhaps the most widely known piece of hardware is the bolt, but if you were asked what one is, could you answer it? Skygeek would.
Bolts are simply threaded fasteners. Aircraft contain countless parts and these parts must frequently be either dismantled and/or replaced. Securing or fastening adjacent parts together (forming a joint) is sometimes achieved by using rivets. However, it is often more practical to use bolts, especially when greater strength and rigidity are required. Bolts are different from other threaded fasteners— like screws—in that they must be screwed into a nut and subsequently tightened by turning it. Turning bolts with right-handed threads requires a clockwise direction; left-handed threads a counter-clockwise direction. Unlike screws, bolts generally have a shorter threaded section and a relatively longer grip length.
The anatomy of a bolt will help you identify and select the right one for a certain application. When using a bolt, keep in mind the following parts (refer to the corresponding diagram): length, diameter, grip, threads, head width and head thickness. The head comes in many styles (e.g. hex, clevis, eyebolt). The part not including the head is called the shaft. Length measures the distance from the bottom of the head to the bottom of the shaft. Diameter refers to the thickness of the shaft. The grip is considered the unthreaded part of the shaft; it runs from the bottom of the head to the beginning of the thread.
Another factor in determining the right bolt is composition. Bolts are usually made of metal such as (Corrosion-resistant, or CRES) steel or aluminum alloy. In addition, bolts often have finishes or surface treatments—cadmium and chromate being two of them.
Most bolts conform to a variety of standards: Air Force/Navy (AN), National Aircraft Standard (NAS), and Military Standard (M or MS). SkyGeek carries an extensive and growing list of series of bolts that meet or exceed these standards. Click on the specific series that suits your needs.