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Machine Design

Precision Panel Hardware

An assortment of precision-engineered thumbscrews, captive screws, and shoulder screws, serves a variety of panelhardware applications.


Thumbscrews have smooth-turning, diamond-knurled heads, while captive screws come with slotted heads. Shoulder screws are held to tight tolerance (+0.000/0.001 diameter, and +0.002/0.000 length) and come with slotted or socket heads. All screw types come in stainless steel as well as other materials and finishes.
Keystone Electronics Corp.,
31-07 20th Rd., Astoria, NY 11105,
(718) 956-8900,

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