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Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 8.0 mm | 0.315 in ; Overall Height - 15.0 mm | 0.591 in ; Knob Diameter - 20.0 mm | 0.787 in
Examples of typical applications include instrument panels, case lids, battery compartments and enclosure windows. A thumb knob may also be listed as a star knob, depending on the precise shape of the head designed for gripping by hand.
Thumb Screw Knob - Compatible Screw Sizes - M6 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 8.0 mm | 0.315 in ; Knob Diameter - 25.0 mm | 0.984 in Thumb Screw Knob - Compatible Screw Sizes - M4 ; Base Diameter - 7.0 mm | 0.276 in ; Overall Height - 11.5 mm | 0.453 in ; Knob Diameter - 17.0 mm | 0.669 in Knurled Knob - Compatible Screw Sizes - M5 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 21.5 mm | 0.846 in ; Knob Diameter - 20.0 mm | 0.787 in
Knurled thumb screws are commonly chosen because they give the user a better grip on the head of the fastener when installing by hand. Westfield Fasteners Limited is a company registered in England and Wales with company number 07215583. Thumb Screw Knob - Compatible Screw Sizes - M8 ; Base Diameter - 13.0 mm | 0.512 in ; Overall Height - 18.0 mm | 0.709 in ; Knob Diameter - 25.0 mm | 0.984 in Knurled Knob - Compatible Screw Sizes - M4 ; Base Diameter - 8.0 mm | 0.315 in ; Overall Height - 21.5 mm | 0.846 in ; Knob Diameter - 16.0 mm | 0.63 in Thumb Screws or Knurled Knob Screws are designed to be tightened and loosened by hand, without the needwhere conditions can be challenging such as food preparation or clean room operations. Manufactured Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 8.5 mm | 0.335 in ; Overall Height - 6.5 mm | 0.256 in ; Knob Diameter - 17.0 mm | 0.669 in
Knurled bolts and screws of this type are so-called because of the knurling pattern - a series of machined ridges or bumps - found around the screw head. Knurling is a widespread manufacturing technique for improving grip or torque force on a huge array of hand-installed components and fasteners. Knurled Knob - Compatible Screw Sizes - M3 ; Base Diameter - 6.0 mm | 0.236 in ; Overall Height - 13.5 mm | 0.531 in ; Knob Diameter - 12.0 mm | 0.472 inThumb Screw Knob - Compatible Screw Sizes - M4 ; Base Diameter - 7.0 mm | 0.276 in ; Overall Height - 5.5 mm | 0.217 in ; Knob Diameter - 13.0 mm | 0.512 in Knurled head thumb screws are one of the most common applications of this technique, which can be found on many types of stainless steel or nylon nuts, screws and bolts. The pattern of bumps, ridges or notches allows for much-improved friction between fingers and the otherwise smooth edges of the thumb screw. Thumb Screw Knobs Knurled Knob - Compatible Screw Sizes - M4 ; Base Diameter - 8.0 mm | 0.315 in ; Overall Height - 29.5 mm | 1.161 in ; Knob Diameter - 16.0 mm | 0.63 in