Specifications Met Specifications Met |
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System of Measurement System of Measurement |
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Material Material |
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Finish Finish |
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Drive Style Drive Style |
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 |  |  |
| Hex | External Hex | Slotted |
Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Thread Direction Thread Direction |
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 | Right Hand |
Rounded Head Style Rounded Head Style |
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 | Button |
Drive Size Drive Size |
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Thread Spacing Thread Spacing |
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Tensile Strength Tensile Strength |
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Rounded Head Profile Rounded Head Profile |
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Hardness Hardness |
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Thread Length Thread Length |
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Head Texture Head Texture |
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 | Knurled |
About Thumb Screw and Binding Post Materials
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About Hex Head Screws and Bolts
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About Rounded Head Screws
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18-8 Stainless Steel Button Head Hex Drive Screws
18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Cotter Pin-Lockable Hex Head Screws
Place a cotter pin through the hole in the shank to keep a nut from loosening (pins and nuts sold separately). These screws have a stronger hold than screws with thread lockers or lock washers. Screws are made to stringent Army-Navy specifications that ensure performance and reliability. They have a precisely measured unthreaded portion (grip). For added strength, place this portion in joints subjected to sideways forces. The cadmium plating provides good corrosion resistance to salt water. Screws have fine threads, which are closely spaced to prevent loosening from vibration; they are not compatible with coarse or extra-fine threads. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Thread Lg. | Grip Lg. | Wd. | Ht. | Hole Dia. | For Cotter Pin Dia. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||||||||||
1/2"-20 | |||||||||||||
| 4 3/32" | Partially Threaded | Fine | 25/32" | 3 5/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-40 | 1 | 000000000 | 000000 |
Narrow Knurled-Head Thumb Screws
Use these slim thumb screws in tight spaces. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Slotted Narrow Knurled-Head Thumb Screws
These thumb screws are slim to fit in tight spaces. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.