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About Hex Head Screws and Bolts
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Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Stainless Steel Flanged Hex Head Screws
 |
Fully Threaded |
 |
Partially Threaded |
The flange on these corrosion-resistant screws spreads pressure over a wide area to protect thin and soft materials. The head's six flat sides keep wrenches and sockets from slipping and rounding off the drive.
Head height includes the flange. Length is measured from under the flange.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but they don't hold up to the harsh chemicals that 316 stainless steel screws can.
Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel screws, these won't degrade when exposed to harsh weather, salt water, and most chemicals.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Head | Imported | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Flange Dia. | Threading | Thread Spacing | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | |||||||||||
1/4"-20 | |||||||||||
| 7/16" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 90166A225 | 000000 | ||
| 1/2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 70,000 | 25 | 90166A226 | 00000 | ||
| 9/16" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 90166A269 | 00000 | ||
| 5/8" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 70,000 | 25 | 90166A227 | 00000 | ||
| 3/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 70,000 | 25 | 90166A228 | 00000 | ||
| 7/8" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 90166A271 | 00000 | ||
| 1" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 70,000 | 25 | 90166A229 | 00000 | ||
| 1 1/8" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 90166A272 | 00000 | ||
| 1 1/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 70,000 | 25 | 90166A273 | 00000 | ||
| 1 1/4" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 10 | 90166A231 | 0000 | ||
| 1 3/8" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A232 | 0000 | ||
| 1 1/2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 70,000 | 10 | 90166A233 | 0000 | ||
| 1 3/4" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 70,000 | 10 | 90166A234 | 0000 | ||
| 2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 70,000 | 10 | 90166A235 | 0000 | ||
| 2 1/2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 70,000 | 10 | 90166A236 | 0000 | ||
| 3" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 10 | 90166A237 | 00000 | ||
| 3 1/2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 5 | 90166A238 | 0000 | ||
| 4" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 5 | 90166A239 | 00000 | ||
5/16"-18 | |||||||||||
| 3/4" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A241 | 0000 | ||
| 7/8" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A274 | 0000 | ||
| 1" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A242 | 0000 | ||
| 1 1/8" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A275 | 0000 | ||
| 1 1/4" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A243 | 0000 | ||
| 1 3/8" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A276 | 0000 | ||
| 1 1/2" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 70,000 | 10 | 90166A244 | 0000 | ||
| 2" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 70,000 | 10 | 90166A245 | 0000 | ||
| 2 1/4" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 5 | 90166A246 | 00000 | ||
| 2 1/2" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 5 | 90166A247 | 00000 | ||
| 3" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 1 | 90166A248 | 0000 | ||
| 4" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 1 | 90166A249 | 0000 | ||
3/8"-16 | |||||||||||
| 3/4" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A251 | 00000 | ||
| 7/8" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A277 | 00000 | ||
| 1" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A252 | 00000 | ||
| 1 1/8" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A278 | 00000 | ||
| 1 1/4" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A253 | 00000 | ||
| 1 3/8" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 10 | 90166A279 | 00000 | ||
| 1 1/2" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 70,000 | 10 | 90166A281 | 00000 | ||
| 1 3/4" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 70,000 | 5 | 90166A254 | 0000 | ||
| 2" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 70,000 | 5 | 90166A255 | 0000 | ||
| 2 1/2" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 70,000 | 5 | 90166A256 | 0000 | ||
| 3" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 70,000 | 5 | 90166A257 | 0000 | ||
1/2"-13 | |||||||||||
| 1" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 70,000 | 5 | 90166A258 | 00000 | ||
| 1 1/4" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 70,000 | 5 | 90166A259 | 00000 | ||
| 1 1/2" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 70,000 | 5 | 90166A261 | 00000 | ||
| 1 3/4" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 70,000 | 5 | 90166A262 | 00000 | ||
| 2" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | 70,000 | 1 | 90166A263 | 0000 | ||
| 2 1/2" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | 70,000 | 1 | 90166A264 | 0000 | ||
| 3" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | 70,000 | 1 | 90166A265 | 0000 | ||
5/8"-11 | |||||||||||
| 1 1/2" | 15/16" | 5/8" | 1 21/64" | Fully Threaded | Coarse | 100,000 | 1 | 90166A282 | 00000 | ||
| 2" | 15/16" | 5/8" | 1 21/64" | Fully Threaded | Coarse | 100,000 | 1 | 90166A283 | 00000 | ||
Black-Oxide 18-8 Stainless Steel | |||||||||||
1/4"-20 | |||||||||||
| 1/2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 91798A114 | 00000 | ||
| 3/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 91798A115 | 00000 | ||
| 1" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 91798A116 | 00000 | ||
| 1 1/2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A117 | 0000 | ||
| 2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A118 | 0000 | ||
5/16"-18 | |||||||||||
| 3/4" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 25 | 91798A119 | 00000 | ||
| 1" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 25 | 91798A121 | 00000 | ||
| 1 1/2" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A122 | 00000 | ||
| 2" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A123 | 00000 | ||
| 2 1/2" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A124 | 00000 | ||
3/8"-16 | |||||||||||
| 1" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A125 | 00000 | ||
| 1 1/2" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 10 | 91798A126 | 00000 | ||
| 2" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 91798A127 | 00000 | ||
| 2 1/2" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 91798A128 | 00000 | ||
| 3" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 91798A129 | 00000 | ||
1/2"-13 | |||||||||||
| 1" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 100,000 | 1 | 91798A131 | 0000 | ||
| 1 1/2" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 100,000 | 1 | 91798A132 | 00000 | ||
| 2" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 100,000 | 1 | 91798A133 | 00000 | ||
| 3" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | 100,000 | 1 | 91798A134 | 00000 | ||
Highly Corrosion-Resistant 316 Stainless Steel | |||||||||||
10-32 | |||||||||||
| 1/2" | 5/16" | 13/64" | 7/16" | Fully Threaded | Fine | 75,000 | 25 | 94447A370 | 00000 | ||
| 3/4" | 5/16" | 13/64" | 7/16" | Fully Threaded | Fine | 75,000 | 25 | 94447A380 | 00000 | ||
| 1" | 5/16" | 13/64" | 7/16" | Fully Threaded | Fine | 75,000 | 25 | 94447A390 | 00000 | ||
1/4"-20 | |||||||||||
| 1/2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 100,000 | 25 | 94447A110 | 00000 | ||
| 3/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 75,000 | 25 | 94447A410 | 00000 | ||
| 1" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 75,000 | 25 | 94447A420 | 00000 | ||
| 1 1/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | 75,000 | 10 | 94447A430 | 0000 | ||
| 1 1/2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 10 | 94447A120 | 00000 | ||
| 2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 10 | 94447A130 | 00000 | ||
| 2 1/2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 10 | 94447A140 | 00000 | ||
| 3" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | 100,000 | 10 | 94447A150 | 00000 | ||
5/16"-18 | |||||||||||
| 3/4" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 94447A440 | 00000 | ||
| 1" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 94447A450 | 00000 | ||
| 1 1/4" | 1/2" | 21/64" | 11/16" | Fully Threaded | Coarse | 100,000 | 10 | 94447A460 | 00000 | ||
| 1 1/2" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 10 | 94447A160 | 00000 | ||
| 2" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 5 | 94447A170 | 00000 | ||
| 2 1/2" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 5 | 94447A180 | 00000 | ||
| 3" | 1/2" | 21/64" | 11/16" | Partially Threaded | Coarse | 100,000 | 5 | 94447A190 | 00000 | ||
3/8"-16 | |||||||||||
| 3/4" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 94447A470 | 0000 | ||
| 1" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 94447A480 | 0000 | ||
| 1 1/4" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 94447A490 | 0000 | ||
| 1 1/2" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | 100,000 | 5 | 94447A510 | 0000 | ||
| 2" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 100,000 | 5 | 94447A210 | 00000 | ||
| 2 1/2" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 100,000 | 1 | 94447A220 | 0000 | ||
| 3" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | 100,000 | 1 | 94447A230 | 0000 | ||
1/2"-13 | |||||||||||
| 1" | 3/4" | 33/64" | 1 5/16" | Fully Threaded | Coarse | 100,000 | 5 | 94447A520 | 00000 | ||
| 1 1/2" | 3/4" | 33/64" | 1 5/16" | Fully Threaded | Coarse | 100,000 | 5 | 94447A530 | 00000 | ||
| 2" | 3/4" | 33/64" | 1 5/16" | Partially Threaded | Coarse | 100,000 | 1 | 94447A240 | 0000 | ||
| 2 1/2" | 3/4" | 33/64" | 1 5/16" | Partially Threaded | Coarse | 100,000 | 1 | 94447A250 | 0000 | ||
| 3" | 3/4" | 33/64" | 1 5/16" | Partially Threaded | Coarse | 100,000 | 1 | 94447A260 | 0000 | ||
Stainless Steel Hex Head Screws
 |
Fully Threaded |
Head | United States Origin | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Each | |||
High-Strength 17-4 PH Stainless Steel | |||||||||
1/4"-20 | |||||||||
| 1/2" | 7/16" | 5/32" | Fully Threaded | Coarse | 130,000 | 96870A201 | 000000 | ||
| 3/4" | 7/16" | 5/32" | Fully Threaded | Coarse | 130,000 | 96870A204 | 00000 | ||
| 1" | 7/16" | 5/32" | Fully Threaded | Coarse | 130,000 | 96870A208 | 00000 | ||
| 1 1/2" | 7/16" | 5/32" | Fully Threaded | Coarse | 130,000 | 96870A212 | 00000 | ||
| 2" | 7/16" | 5/32" | Fully Threaded | Coarse | 130,000 | 96870A216 | 00000 | ||
5/16"-18 | |||||||||
| 3/4" | 1/2" | 13/64" | Fully Threaded | Coarse | 130,000 | 96870A225 | 00000 | ||
| 1" | 1/2" | 13/64" | Fully Threaded | Coarse | 130,000 | 96870A228 | 00000 | ||
| 1 1/4" | 1/2" | 13/64" | Fully Threaded | Coarse | 130,000 | 96870A231 | 00000 | ||
| 1 1/2" | 1/2" | 13/64" | Fully Threaded | Coarse | 130,000 | 96870A235 | 00000 | ||
| 2" | 1/2" | 13/64" | Fully Threaded | Coarse | 130,000 | 96870A239 | 00000 | ||
3/8"-16 | |||||||||
| 1" | 9/16" | 15/64" | Fully Threaded | Coarse | 130,000 | 96870A252 | 00000 | ||
| 1 1/4" | 9/16" | 15/64" | Fully Threaded | Coarse | 130,000 | 96870A255 | 00000 | ||
| 1 1/2" | 9/16" | 15/64" | Fully Threaded | Coarse | 130,000 | 96870A259 | 00000 | ||
| 2" | 9/16" | 15/64" | Fully Threaded | Coarse | 130,000 | 96870A262 | 00000 | ||
| 2 1/2" | 9/16" | 15/64" | Fully Threaded | Coarse | 130,000 | 96870A266 | 00000 | ||
1/2"-13 | |||||||||
| 1" | 3/4" | 5/16" | Fully Threaded | Coarse | 130,000 | 96870A282 | 00000 | ||
| 1 1/2" | 3/4" | 5/16" | Fully Threaded | Coarse | 130,000 | 96870A285 | 00000 | ||
| 2" | 3/4" | 5/16" | Fully Threaded | Coarse | 130,000 | 96870A289 | 00000 | ||
| 2 1/2" | 3/4" | 5/16" | Fully Threaded | Coarse | 130,000 | 96870A292 | 00000 | ||
| 3" | 3/4" | 5/16" | Fully Threaded | Coarse | 130,000 | 96870A296 | 00000 | ||
Stainless Steel Hex Head Screw Kits for Metal Pipe Flanges
 |  |
Shown Installed |
Join aluminum or stainless steel pipe flanges. These kits come with corrosion-resistant screws and nuts in the right size and number to match your flange's bolt holes. The screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
Screw length is measured from under the head. For a tight seal, you’ll also need a gasket between the flanges.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
316 Stainless Steel—Superior to 18-8 stainless steel screws, these won't degrade when exposed to harsh weather, salt water, and most chemicals.
PTFE-Coated 316 Stainless Steel—A slippery coating prevents these nuts from binding or sticking during installation. They resist rust in wet and outdoor environments and can handle occasional exposure to mild acids and chemicals without corroding.
Screw | Nut | 18-8 Stainless Steel Screws and Nuts | 316 Stainless Steel Screws and Nuts | 316 Stainless Steel Screws and Blue PTFE-Coated 316 Stainless Steel Nuts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Pipe Size | Thread Size | Lg. | Head Wd. | Head Ht. | Threading | Thread Spacing | Tensile Strength, psi | Wd. | Ht. | Includes | Each | Each | Each | |||||
For Class 125/150 Flanges | ||||||||||||||||||
| 1/2, 3/4 | 1/2"-13 | 2" | 3/4" | 11/32" | Partially Threaded | Coarse | 80,000 | 3/4" | 7/16" | 4 Hex Head Screws 4 Hex Nuts | 94368A223 | 00000 | 94368A225 | 00000 | 94368A227 | 000000 | ||
| 1, 1 1/4 | 1/2"-13 | 2 1/4" | 3/4" | 11/32" | Partially Threaded | Coarse | 80,000 | 3/4" | 7/16" | 4 Hex Head Screws 4 Hex Nuts | 94368A111 | 0000 | 94368A226 | 00000 | 94368A228 | 00000 | ||
| 1 1/2 | 1/2"-13 | 2 1/2" | 3/4" | 11/32" | Partially Threaded | Coarse | 80,000 | 3/4" | 7/16" | 4 Hex Head Screws 4 Hex Nuts | 94368A224 | 0000 | 94368A211 | 00000 | 94368A212 | 00000 | ||
| 2 | 5/8"-11 | 2 3/4" | 15/16" | 27/64" | Partially Threaded | Coarse | 80,000 | 15/16" | 35/64" | 4 Hex Head Screws 4 Hex Nuts | 94368A112 | 00000 | 94368A125 | 00000 | 94368A213 | 00000 | ||
| 2 1/2, 3 | 5/8"-11 | 3" | 15/16" | 27/64" | Partially Threaded | Coarse | 80,000 | 15/16" | 35/64" | 4 Hex Head Screws 4 Hex Nuts | 94368A113 | 00000 | 94368A126 | 00000 | 94368A138 | 00000 | ||
| 4 | 5/8"-11 | 3" | 15/16" | 27/64" | Partially Threaded | Coarse | 80,000 | 15/16" | 35/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A114 | 00000 | 94368A127 | 00000 | 94368A139 | 00000 | ||
| 6 | 3/4"-10 | 3 1/4" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A115 | 00000 | 94368A128 | 00000 | 94368A141 | 00000 | ||
| 8 | 3/4"-10 | 3 1/2" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A116 | 00000 | 94368A129 | 00000 | 94368A142 | 00000 | ||
| 10, 12 | 7/8"-9 | 4" | 1 5/16" | 37/64" | Partially Threaded | Coarse | 80,000 | 1 5/16" | 3/4" | 12 Hex Head Screws 12 Hex Nuts | 94368A118 | 000000 | 94368A132 | 000000 | 94368A144 | 000000 | ||
For Class 300 Flanges | ||||||||||||||||||
| 1/2 | 1/2"-13 | 2 1/4" | 3/4" | 11/32" | Partially Threaded | Coarse | 80,000 | 3/4" | 7/16" | 4 Hex Head Screws 4 Hex Nuts | 94368A214 | 0000 | 94368A215 | 00000 | 94368A222 | 00000 | ||
| 3/4, 1 | 5/8"-11 | 2 1/2" | 15/16" | 27/64" | Partially Threaded | Coarse | 80,000 | 15/16" | 35/64" | 4 Hex Head Screws 4 Hex Nuts | 94368A147 | 00000 | 94368A159 | 00000 | 94368A219 | 00000 | ||
| 1 1/4 | 5/8"-11 | 2 3/4" | 15/16" | 27/64" | Partially Threaded | Coarse | 80,000 | 15/16" | 35/64" | 4 Hex Head Screws 4 Hex Nuts | 94368A229 | 0000 | 94368A231 | 00000 | 94368A218 | 00000 | ||
| 1 1/2 | 3/4"-10 | 3" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 4 Hex Head Screws 4 Hex Nuts | 94368A148 | 00000 | 94368A161 | 00000 | 94368A217 | 00000 | ||
| 2 | 5/8"-11 | 3" | 15/16" | 27/64" | Partially Threaded | Coarse | 80,000 | 15/16" | 35/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A149 | 00000 | 94368A162 | 00000 | 94368A216 | 00000 | ||
| 3 | 3/4"-10 | 3 1/2" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A152 | 00000 | 94368A164 | 00000 | ——— | 0 | ||
| 3 1/2, 4 | 3/4"-10 | 3 3/4" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A153 | 00000 | 94368A165 | 00000 | 94368A221 | 000000 | ||
| 5 | 3/4"-10 | 4" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 8 Hex Head Screws 8 Hex Nuts | 94368A154 | 00000 | 94368A166 | 00000 | ——— | 0 | ||
| 6 | 3/4"-10 | 4" | 1 1/8" | 1/2" | Partially Threaded | Coarse | 80,000 | 1 1/8" | 41/64" | 12 Hex Head Screws 12 Hex Nuts | 94368A155 | 00000 | 94368A167 | 000000 | ——— | 0 | ||
| 8 | 7/8"-9 | 4 1/2" | 1 5/16" | 37/64" | Partially Threaded | Coarse | 80,000 | 1 5/16" | 3/4" | 12 Hex Head Screws 12 Hex Nuts | 94368A156 | 000000 | ——— | 0 | ——— | 0 | ||
| 10 | 1"-8 | 5 1/2" | 1 1/2" | 43/64" | Partially Threaded | Coarse | 80,000 | 1 1/2" | 55/64" | 16 Hex Head Screws 16 Hex Nuts | 94368A157 | 000000 | ——— | 0 | ——— | 0 | ||
Stainless Steel Hex Head Screw Kits
 |
 |
Fully Threaded |
 |
Partially Threaded |
Everything you need for a complete, corrosion-resistant joint—the screws in these kits come with compatible nuts and washers. The screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive. Washers distribute pressure on both sides of your material, so the nut tightens onto the screw without damaging surfaces.
Screw length is measured from under the head.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
Screw | Nut | Washer | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Head Wd. | Head Ht. | Threading | Thread Spacing | Tensile Strength, psi | Wd. | Ht. | ID | OD | Thk. | Includes | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||||||||
1/4"-20 | ||||||||||||||||
| 1/2" | 7/16" | 5/32" | Fully Threaded | Coarse | 100,000 | 7/16" | 7/32" | 0.281" | 0.620" | 0.045" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A140 | 00000 | ||
| 3/4" | 7/16" | 5/32" | Fully Threaded | Coarse | 100,000 | 7/16" | 7/32" | 0.281" | 0.620" | 0.045" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A160 | 0000 | ||
| 1" | 7/16" | 5/32" | Fully Threaded | Coarse | 100,000 | 7/16" | 7/32" | 0.281" | 0.620" | 0.045" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A130 | 00000 | ||
| 1 1/4" | 7/16" | 5/32" | Fully Threaded | Coarse | 100,000 | 7/16" | 7/32" | 0.281" | 0.620" | 0.045" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A120 | 00000 | ||
| 1 1/2" | 7/16" | 5/32" | Partially Threaded | Coarse | 100,000 | 7/16" | 7/32" | 0.281" | 0.620" | 0.045" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A110 | 00000 | ||
| 2" | 7/16" | 5/32" | Partially Threaded | Coarse | 100,000 | 7/16" | 7/32" | 0.281" | 0.620" | 0.045" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A150 | 00000 | ||
5/16"-18 | ||||||||||||||||
| 3/4" | 1/2" | 13/64" | Fully Threaded | Coarse | 100,000 | 1/2" | 17/64" | 0.375" | 0.875" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A210 | 00000 | ||
| 1" | 1/2" | 13/64" | Fully Threaded | Coarse | 100,000 | 1/2" | 17/64" | 0.375" | 0.875" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A190 | 00000 | ||
| 1 1/4" | 1/2" | 13/64" | Fully Threaded | Coarse | 100,000 | 1/2" | 17/64" | 0.375" | 0.875" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A180 | 00000 | ||
| 1 1/2" | 1/2" | 13/64" | Partially Threaded | Coarse | 100,000 | 1/2" | 17/64" | 0.375" | 0.875" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A170 | 0000 | ||
3/8"-16 | ||||||||||||||||
| 1" | 9/16" | 15/64" | Fully Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 25 | 97405A250 | 00000 | ||
| 1 1/4" | 9/16" | 15/64" | Fully Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A230 | 0000 | ||
| 1 1/2" | 9/16" | 15/64" | Partially Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A220 | 0000 | ||
| 1 3/4" | 9/16" | 15/64" | Partially Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A240 | 0000 | ||
| 2" | 9/16" | 15/64" | Partially Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A270 | 0000 | ||
| 2 1/2" | 9/16" | 15/64" | Partially Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A260 | 0000 | ||
| 3" | 9/16" | 15/64" | Partially Threaded | Coarse | 100,000 | 9/16" | 21/64" | 0.406" | 1.000" | 0.050" | One Hex Nut and Two Flat Washers per Hex Head Screw | 10 | 97405A280 | 00000 | ||
1/2"-13 | ||||||||||||||||
| 1" | 3/4" | 5/16" | Fully Threaded | Coarse | 100,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | One Hex Nut and Two Flat Washers per Hex Head Screw | 5 | 97405A310 | 0000 | ||
| 1 1/2" | 3/4" | 5/16" | Partially Threaded | Coarse | 100,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | One Hex Nut and Two Flat Washers per Hex Head Screw | 5 | 97405A290 | 0000 | ||
| 2" | 3/4" | 5/16" | Partially Threaded | Coarse | 100,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | One Hex Nut and Two Flat Washers per Hex Head Screw | 5 | 97405A330 | 00000 | ||
| 2 1/2" | 3/4" | 5/16" | Partially Threaded | Coarse | 100,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | One Hex Nut and Two Flat Washers per Hex Head Screw | 5 | 97405A320 | 00000 | ||
| 3" | 3/4" | 5/16" | Partially Threaded | Coarse | 100,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | One Hex Nut and Two Flat Washers per Hex Head Screw | 5 | 97405A340 | 00000 | ||
Stainless Steel Hex Head Screw Kits for Plastic Pipe Flanges
 |  |
Shown Installed |
All the corrosion-resistant hardware you need to join plastic pipe flanges. These kits come with screws, nuts, and washers in the right size and number to match your flange's bolt holes. The screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
Screw length is measured from under the head. For a tight seal, you’ll also need a gasket between the flanges.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
Screw | Nut | Washer | 18-8 Stainless Steel Screws and Nuts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Pipe Size | Thread Size | Lg. | Head Wd. | Head Ht. | Threading | Thread Spacing | Tensile Strength, psi | Wd. | Ht. | ID | OD | Thk. | Includes | Each | |||
For Class 150 Flanges | |||||||||||||||||
| 1/2 | 1/2"-13 | 2" | 3/4" | 5/16" | Partially Threaded | Coarse | 85,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | 4 Hex Head Screws 4 Hex Nuts 8 Flat Washers | 97751A220 | 000000 | ||
| 3/4, 1 | 1/2"-13 | 2 1/4" | 3/4" | 5/16" | Partially Threaded | Coarse | 85,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | 4 Hex Head Screws 4 Hex Nuts 8 Flat Washers | 97751A230 | 00000 | ||
| 1 1/4, 1 1/2 | 1/2"-13 | 2 1/2" | 3/4" | 5/16" | Partially Threaded | Coarse | 85,000 | 3/4" | 7/16" | 0.531" | 1.250" | 0.062" | 4 Hex Head Screws 4 Hex Nuts 8 Flat Washers | 97751A240 | 00000 | ||
| 2 | 5/8"-11 | 3" | 15/16" | 25/64" | Partially Threaded | Coarse | 85,000 | 15/16" | 35/64" | 0.687" | 1.500" | 0.078" | 4 Hex Head Screws 4 Hex Nuts 8 Flat Washers | 97751A250 | 00000 | ||
| 2 1/2 | 5/8"-11 | 3 1/4" | 15/16" | 25/64" | Partially Threaded | Coarse | 85,000 | 15/16" | 35/64" | 0.687" | 1.500" | 0.078" | 4 Hex Head Screws 4 Hex Nuts 8 Flat Washers | 97751A260 | 00000 | ||
| 3 | 5/8"-11 | 3 1/2" | 15/16" | 25/64" | Partially Threaded | Coarse | 85,000 | 15/16" | 35/64" | 0.687" | 1.500" | 0.078" | 4 Hex Head Screws 4 Hex Nuts 8 Flat Washers | 97751A270 | 00000 | ||
| 4 | 5/8"-11 | 3 1/2" | 15/16" | 25/64" | Partially Threaded | Coarse | 85,000 | 15/16" | 35/64" | 0.687" | 1.500" | 0.078" | 8 Hex Head Screws 8 Hex Nuts 16 Flat Washers | 97751A280 | 00000 | ||
| 5, 6 | 3/4"-10 | 4" | 1 1/8" | 15/32" | Partially Threaded | Coarse | 85,000 | 1 1/8" | 21/32" | 0.812" | 1.875" | 0.109" | 8 Hex Head Screws 8 Hex Nuts 16 Flat Washers | 97751A290 | 00000 | ||
| 8 | 3/4"-10 | 4 1/2" | 1 1/8" | 15/32" | Partially Threaded | Coarse | 85,000 | 1 1/8" | 21/32" | 0.812" | 1.875" | 0.109" | 8 Hex Head Screws 8 Hex Nuts 16 Flat Washers | 97751A310 | 00000 | ||
| 10, 12 | 7/8"-9 | 6" | 1 5/16" | 35/64" | Partially Threaded | Coarse | 85,000 | 1 5/16" | 49/64" | 0.937" | 2.000" | 0.109" | 12 Hex Head Screws 12 Hex Nuts 24 Flat Washers | 97751A320 | 000000 | ||
Stainless Steel Hex Head Screw, Nut, and Washer Assortments
 |
Stock up on different sizes of corrosion-resistant hex head screws, nuts, and washers. The screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
Length is measured from under the head.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel screws, these won't degrade when exposed to harsh weather, salt water, and most chemicals.
No. of Pieces | Hex Head Screws Included | Hex Nuts Included | Split Lock Washers Included | Flat Washers Included | Container Type | Each | |||
|---|---|---|---|---|---|---|---|---|---|
18-8 Stainless Steel | |||||||||
| 420 | 1/4"-20 Thread: 1/2", 1", 1 1/2", and 2" Lg. (90 Pieces) 5/16"-18 Thread: 1/2", 1", 1 1/2", and 2" Lg. (80 Pieces) 3/8"-16 Thread: 1", 1 1/2", 2", and 2 1/2" Lg. (50 Pieces) | 1/4"-20 Thread (25 Pieces) 5/16"-18 Thread (20 Pieces) 3/8"-16 Thread (10 Pieces) | For 1/4" Screw Size (50 Pieces) For 5/16" Screw Size (20 Pieces) For 3/8" Screw Size (20 Pieces) | For 1/4" Screw Size (25 Pieces) For 5/16" Screw Size (20 Pieces) For 3/8" Screw Size (10 Pieces) | Metal Box | 91370A113 | 0000000 | ||
| 605 | 1/4"-20 Thread: 1/2", 5/8", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2", and 3" Lg. (190 Pieces) | 1/4"-20 Thread (140 Pieces) | For 1/4" Screw Size (85 Pieces) | For 1/4" Screw Size (190 pieces) | Metal Box | 91370A116 | 000000 | ||
Highly Corrosion-Resistant 316 Stainless Steel | |||||||||
| 545 | 3/8"-16 Thread: 3/4", 1", 1 1/4", 1 1/2", 1 3/4", 2", 2 1/2", 3", and 4" Lg. (165 Pieces) | 3/8"-16 Thread (120 Pieces) | For 3/8" Screw Size (80 Pieces) | For 3/8" Screw Size (180 pieces) | Metal Box | 94146A312 | 000000 | ||
| 605 | 1/4"-20 Thread: 1/2", 5/8", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2", and 3" Lg. (190 Pieces) | 1/4"-20 Thread (140 Pieces) | For 1/4" Screw Size (85 Pieces) | For 1/4" Screw Size (190 pieces) | Metal Box | 94146A311 | 000000 | ||
Stainless Steel Flanged Hex Head Screw and Nut Assortments
 |
Different sizes of corrosion-resistant flanged fasteners for a variety of jobs. The screws and nuts in these assortments both have a flange that spreads pressure over a wide area to protect thin and soft materials. The screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
Head height includes the flange. Length is measured from under the flange.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel screws can.
No. of Pieces | Flanged Hex Head Screws Included | Flange Nuts Included | Container Type | Each | |||
|---|---|---|---|---|---|---|---|
18-8 Stainless Steel | |||||||
| 480 | 1/4"-20 Thread: 1/2", 3/4", 1", 1 1/2", and 2" Lg. (140 Pieces) 5/16"-18 Thread: 3/4", 1", 1 1/2", and 2" Lg. (100 Pieces) 3/8"-16 Thread: 1", 1 1/2", 2", and 2 1/2" Lg. (60 Pieces) | 1/4"-20 Thread (80 Pieces) 5/16"-18 Thread (60 Pieces) 3/8"-16 Thread (40 Pieces) | Metal Box | 91618A115 | 0000000 | ||
