316 SS Hex Nut
316 SS Hex Nut
Manufacturers:
316 stainless steel hex nuts are made from 316 stainless steel, an austenitic alloy which differs from 18-8 by its molybdenum content (2-3%) and a higher nickel content (10-14%). Dimensional specifications are governed by ASME B18.2.2 for finish nuts, and ASME B18.6.3 for the smaller diameter machine nuts. Nuts made of 316 stainless steel are marked "316". 316 stainless steel fasteners are commonly used in applications that require general atmospheric corrosion resistance, such as chemical and food processing equipment. More corrosion resistant than 18-8 stainless steel nuts.
Products
Dimensional Specifications
| Per ASME B18.2.2-2015 | |||||||||||
| Nominal Diameter | UNC | UNF | F | G | H | ||||||
| Width Across Flats | Width Across Corners | Thickness | |||||||||
| Basic | Max | Min | Max | Min | Basic | Max | Min | ||||
| #0 | 0.060 | 80 | 80 | 5/32 | 0.1560 | 0.1500 | 0.2210 | 0.2060 | 5/32 | 0.0500 | 0.0430 |
| #1 | 0.073 | 64 | 72 | 5/32 | 0.1560 | 0.1500 | 0.2210 | 0.2060 | 5/32 | 0.0500 | 0.0430 |
| #2 | 0.086 | 56 | 72 | 3/16 | 0.1880 | 0.1800 | 0.2650 | 0.2050 | 3/16 | 0.0660 | 0.0570 |
| #3 | 0.099 | 48 | 64 | 3/16 | 0.1880 | 0.1800 | 0.2650 | 0.2050 | 3/16 | 0.0660 | 0.0570 |
| #4 | 0.112 | 40 | 48 | 1/4 | 0.2500 | 0.2410 | 0.2890 | 0.2750 | 1/4 | 0.0980 | 0.0870 |
| #5 | 0.125 | 40 | 44 | 5/16 | 0.3120 | 0.3020 | 0.3610 | 0.3440 | 5/16 | 0.1140 | 0.1020 |
| #6 | 0.138 | 32 | 40 | 5/16 | 0.3120 | 0.3020 | 0.3610 | 0.3440 | 5/16 | 0.1140 | 0.1020 |
| #8 | 0.164 | 32 | 36 | 11/32 | 0.3440 | 0.3320 | 0.3970 | 1.2540 | 11/32 | 0.1300 | 0.1170 |
| #10 | 0.190 | 24 | 32 | 3/8 | 0.3750 | 0.3620 | 0.4330 | 1.4650 | 3/8 | 0.1300 | 0.1170 |
| #12 | 0.216 | 24 | 28 | 7/16 | 0.4380 | 0.4380 | 0.5050 | 1.6750 | 7/16 | 0.1610 | 0.1480 |
| 1/4 | 0.2500 | 20 | 28 | 7/16 | 0.4380 | 0.4280 | 0.5050 | 0.4880 | 7/32 | 0.2260 | 0.2120 |
| 5/16 | 0.3125 | 18 | 24 | 1/2 | 0.5000 | 0.4890 | 0.5770 | 0.5570 | 17/64 | 0.2730 | 0.2580 |
| 3/8 | 0.3750 | 16 | 24 | 9/16 | 0.5630 | 0.5510 | 0.6500 | 0.6280 | 21/64 | 0.3370 | 0.3200 |
| 7/16 | 0.4375 | 14 | 20 | 11/16 | 0.6880 | 0.6750 | 0.7940 | 0.7680 | 3/8 | 0.3850 | 0.3650 |
| 1/2 | 0.5000 | 13 | 20 | 3/4 | 0.7500 | 0.7300 | 0.8660 | 0.8400 | 7/16 | 0.4480 | 0.4270 |
| 9/16 | 0.5625 | 12 | 18 | 7/8 | 0.8750 | 0.8610 | 1.0100 | 0.9820 | 31/64 | 0.4960 | 0.4730 |
| 5/8 | 0.6250 | 11 | 18 | 15/16 | 0.9380 | 0.9220 | 1.0830 | 1.0510 | 35/64 | 0.5590 | 0.5350 |
| 3/4 | 0.7500 | 10 | 16 | 1 1/8 | 1.1250 | 1.0880 | 1.2990 | 1.2400 | 41/64 | 0.6650 | 0.6170 |
| 7/8 | 0.8750 | 9 | 14 | 1 5/16 | 1.3120 | 1.2690 | 1.5160 | 1.4470 | 3/4 | 0.7760 | 0.7240 |
| 1 | 1.0000 | 8 | 14 | 1 1/2 | 1.5000 | 1.4500 | 1.7320 | 1.6530 | 55/64 | 0.8870 | 0.8310 |
| 1 1/8 | 1.1250 | 7 | 12 | 1 11/16 | 1.6880 | 1.6310 | 1.9490 | 1.8590 | 31/32 | 0.9990 | 0.9390 |
| 1 1/4 | 1.2500 | 7 | 12 | 1 7/8 | 1.8750 | 1.8120 | 2.1650 | 2.0660 | 1 1/16 | 1.0940 | 1.0300 |
| 1 3/8 | 1.3750 | 6 | 12 | 2 1/16 | 2.0620 | 1.9940 | 2.3820 | 2.2730 | 1 11/16 | 1.2060 | 1.3800 |
| 1 1/2 | 1.5000 | 6 | 12 | 2 1/4 | 2.2500 | 2.1750 | 2.5980 | 2.4800 | 1 9/32 | 1.3170 | 1.2450 |
- All dimensions are in inches.
Governing Standards
| ASME B18.2.2 | Covers the complete general and dimensional data for the various types of inch series square and hex nuts, including machine screw nuts and coupling nuts. |
| ASME B1.1 UNC & UNF Class 2B | Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. |
316 Stainless Steel requires no material marking