Black oil-dipped alloy steel set screws with knurled points, available in coarse and fine thread variants.
Knurled Point Socket Set Screws are designed to resist loosening caused by vibration. The knurled tip bites into the mating surface for superior holding power without damaging the threads. Made from durable alloy steel and conforming to ANSI B18.3 standards, these screws feature a black oil-dipped finish for added corrosion resistance.
Available in both coarse thread (USS) and fine thread (SAE) variations to accommodate a wide range of industrial applications.
| Thread Type | Diameter | TPI | Length | Part No. |
|---|---|---|---|---|
| Coarse | #6 | 32 | 1/4 | 30-4810 |
| Coarse | #8 | 32 | 3/8 | 30-4825 |
| Coarse | #10 | 24 | 1/4 | 30-4837 |
| Coarse | #10 | 24 | 3/8 | 30-4839 |
| Coarse | 1/4 | 20 | 1/4 | 30-4851 |
| Coarse | 1/4 | 20 | 5/16 | 30-4852 |
| Coarse | 1/4 | 20 | 3/8 | 30-4853 |
| Coarse | 1/4 | 20 | 1/2 | 30-4854 |
| Coarse | 1/4 | 20 | 3/4 | 30-4855 |
| Coarse | 1/4 | 20 | 1″ | 30-4856 |
| Coarse | 1/4 | 20 | 1-1/4″ | 30-4857 |
| Coarse | 5/16 | 18 | 3/8 | 30-4868 |
| Coarse | 5/16 | 18 | 1/2 | 30-4870 |
| Coarse | 5/16 | 18 | 3/4 | 30-4872 |
| Coarse | 3/8 | 16 | 3/8 | 30-4884 |
| Coarse | 3/8 | 16 | 1/2 | 30-4885 |
| Coarse | 3/8 | 16 | 3/4 | 30-4888 |
| Coarse | 1/2 | 13 | 1/2 | 30-4890 |
| Coarse | 1/2 | 13 | 3/4 | 30-4891 |
| Coarse | 1/2 | 13 | 1″ | 30-4892 |
| Coarse | 1/2 | 13 | 1-1/4″ | 30-4893 |
| Fine | #10 | 32 | 1/4 | 30-4895 |
| Fine | #10 | 32 | 5/16 | 30-4896 |
| Fine | #10 | 32 | 3/8 | 30-4897 |
| Fine | #10 | 32 | 1/2 | 30-4898 |
| Fine | 1/4 | 28 | 1/4 | 30-4905 |
| Fine | 1/4 | 28 | 5/16 | 30-4907 |
| Fine | 1/4 | 28 | 3/8 | 30-4909 |
| Fine | 1/4 | 28 | 1/2 | 30-4910 |
| Fine | 5/16 | 24 | 3/8 | 30-4911 |
| Fine | 5/16 | 24 | 1/2 | 30-4912 |
| Fine | 3/8 | 24 | 3/4 | 30-4913 |
At GNS Industrial Supply, we don’t just deliver products—we deliver peace of mind. Unlike traditional suppliers who ship and leave the rest to you, we take a hands-on approach to your inventory management. Our team visits your location, audits your existing stock, identifies what you need, and handles the reordering process for you. We then deliver directly to your facility and restock your supply room according to your preferred system—ensuring your operation runs smoothly without overstock or downtime. It’s a smarter, more personalized way to manage industrial supplies—built for teams who don’t have time to run out of what matters.