18-8 Stainless Steel Knurled-Head Thumb Nut
5/16"-24 Thread Size







Thumb Nut Profile | Standard |
Thumb Nut Grip Type | Knurled Head |
Material | 18-8 Stainless Steel |
Thread Size | 5/16"-24 |
Collar | |
Diameter | 1/2" |
Height | 3/8" |
Head Diameter | 1" |
Height | 5/8" |
Threading | Fully Threaded |
Certificate Form | Digital |
Certificate Type | Material Certificate with Traceable Lot Number |
Head Texture | Knurled |
Nut Type | Round, Thumb |
Performance | Corrosion Resistant |
System of Measurement | Inch |
Thread Direction | Right Hand |
Thread Fit | Unified Standard Class 2B |
Thread Spacing | Fine |
Thread Type | UNF |
Country of Origin | United States |
DFARS Compliance | Specialty Metals Compliant (252.225-7009) |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (02/04/2026, 253 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Get a good grip on these nuts, even with oily fingers. They have a raised, slip-resistant head, so you can tighten them by hand and make controlled adjustments. Knurled-head nuts have a smaller profile than wing nuts, so they fit in tighter spots.
18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
The information in this 3-D model is provided for reference only.

























