A 9T41-R8399129 is a red acetal resin knurled knob with a 1/4-20 screw 1-1/2 inches long, assembled as a thumb screw knob. The knob is made of acetal resin and the screw of steel alloy, priced per 10 pieces. The product is part of a series of decorative thumb screw knobs with varying lengths and color codes, where R designates red. The screw length and thread size are documented for this variant in the series. No physical dimensions beyond screw length or other ratings are specified.
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 9T41-R8399129 |
| Product Name | 1/4-20 Red Acetal Knurled Knob & Cap Screw Ass'y, 1-1/2" lg. |
| Knob Type | Thumbscrew |
