Acetal resin thumb screw knobs for socket head cap screws, designed for quick assembly and decorative use, are available in knurled, rosette, tee, and "L" styles. The A 9M41-8398903 variant is a 1/4 inch knurled knob with a 3/4 inch head diameter, fits a 1/4 inch screw, and has a 5/16 inch body length and 1/2 inch shaft length. Knobs are priced per 100 pieces and include color options indicated by suffixes, such as Y for yellow. No formal standards or qualifications are stated.
Industrial fasteners are hardware devices that join two or more items together, creating a semi-permanent or permanent connection. The fasteners most frequently used by machinery designers are screws, nuts, retaining rings, and various types of pins because of the basic role that they play in the assembly of mechanisms. Various industrial hardware components are used in the assembly process including knobs, washers, spacers, shims, handles, springs, spring-powered reels, and ball plunger screws.
Fasteners play a vital role in a wide range of applications, from everyday household items to medical devices, robotics, and even outer space. Careful consideration must be given before selecting the most appropriate fastener for an application.
Download Reference Tables to help with selection:
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Knobs (industrial) |
| Product Number | A 9M41-Y8398903 |
| Product Name | Yellow Acetal, 1/4 Knurled Knobs For Thumb Screw |
| Knob Type | Thumbscrew; Knurled Knob |
