Specifications Met Specifications Met |
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System of Measurement System of Measurement |
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Drive Style Drive Style |
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 |  |  |
| External Hex | Hex | Slotted |
Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Material Material |
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Thread Spacing Thread Spacing |
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Rounded Head Style Rounded Head Style |
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 | Button |
Hardness Hardness |
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Tensile Strength Tensile Strength |
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Rounded Head Profile Rounded Head Profile |
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Thread Direction Thread Direction |
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 | Right Hand |
Drive Size Drive Size |
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Thumb Screw Head Shape Thumb Screw Head Shape |
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 | Round |
Round-Head Thumb Screw Profile Round-Head ThumbScrew Profile |
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 | Narrow |
Head Texture Head Texture |
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 | Knurled |
About Thumb Screw and Binding Post Materials
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About Rounded Head Screws
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About Hex Head Screws and Bolts
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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.