Choose these screws for their adherence to strict military standards for material and construction. With a tensile strength of 160,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. They're cadmium plated to resist corrosion in wet environments. Length is measured from under the head.

Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Head

Lg. Threading Min.

Thread Lg. Thread

Spacing Dia. Ht. Drive

Size Tensile

Strength, psi Specifications Met Each

Cadmium-Plated Alloy Steel

2-56

3/16" Fully Threaded __ Coarse 9/64" 0.086" 5/64" 160,000 MS16997-1, NAS1352-02-3P 92562A111 $2.17

1/4" Fully Threaded __ Coarse 9/64" 0.086" 5/64" 160,000 MS16997-2, NAS1352-02-4P 92562A112 2.26

3/8" Fully Threaded __ Coarse 9/64" 0.086" 5/64" 160,000 MS16997-3, NAS1352-02-6P 92562A113 2.35

1/2" Fully Threaded __ Coarse 9/64" 0.086" 5/64" 160,000 MS16997-4, NAS1352-02-8P 92562A114 2.35

4-40

1/4" Fully Threaded __ Coarse 0.183" 0.112" 3/32" 160,000 MS16997-9, NAS1352-04-4P 92562A115 1.83

3/8" Fully Threaded __ Coarse 0.183" 0.112" 3/32" 160,000 MS16997-10, NAS1352-04-6P 92562A116 1.96

1/2" Fully Threaded __ Coarse 0.183" 0.112" 3/32" 160,000 MS16997-11, NAS1352-04-8P 92562A117 2.22

5/8" Fully Threaded __ Coarse 0.183" 0.112" 3/32" 160,000 MS16997-12, NAS1352-04-10P 92562A118 2.96

3/4" Fully Threaded __ Coarse 0.183" 0.112" 3/32" 160,000 MS16997-13, NAS1352-04-12P 92562A119 2.13

1" Partially Threaded 3/4" Coarse 0.183" 0.112" 3/32" 160,000 MS16997-14, NAS1352-04-16P 92562A120 2.83

6-32

1/4" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-18, NAS1352-06-4P 92562A207 2.43

3/8" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-19, NAS1352-06-6P 92562A121 2.60

1/2" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-20, NAS1352-06-8P 92562A212 2.56

5/8" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-21, NAS1352-06-10P 92562A122 2.72

3/4" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-22, NAS1352-06-12P 92562A214 3.33

7/8" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-23, NAS1352-06-14P 92562A123 2.72

1" Fully Threaded __ Coarse 0.226" 0.138" 7/64" 160,000 MS16997-24, NAS1352-06-16P 92562A216 3.73

8-32

1/4" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-30, NAS1352-08-4P 92562A711 5.00

3/8" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-31, NAS1352-08-6P 92562A124 2.60

1/2" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-32, NAS1352-08-8P 92562A219 2.47

5/8" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-33, NAS1352-08-10P 92562A125 2.72

3/4" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-34, NAS1352-08-12P 92562A221 2.74

7/8" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-35, NAS1352-08-14P 92562A126 2.84

1" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 160,000 MS16997-36, NAS1352-08-16P 92562A225 2.83

1 1/4" Partially Threaded 7/8" Coarse 0.27" 0.164" 9/64" 160,000 MS16997-37, NAS1352-08-20P 92562A227 3.67

1 1/2" Partially Threaded 1 1/8" Coarse 0.27" 0.164" 9/64" 160,000 MS16997-38, NAS1352-08-24P 92562A229 4.00

10-24

3/8" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 160,000 MS16997-43, NAS1352-3-6P 92562A127 3.28

1/2" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 160,000 MS16997-44, NAS1352-3-8P 92562A234 3.07

5/8" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 160,000 MS16997-45, NAS1352-3-10P 92562A128 3.36

3/4" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 160,000 MS16997-46, NAS1352-3-12P 92562A237 4.00

7/8" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 160,000 MS16997-47, NAS1352-3-14P 92562A129 3.68

1" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 160,000 MS16997-48, NAS1352-3-16P 92562A239 5.00

1 1/4" Partially Threaded 7/8" Coarse 5/16" 0.19" 5/32" 160,000 MS16997-49, NAS1352-3-20P 92562A242 5.33

1 1/2" Partially Threaded 1 1/8" Coarse 5/16" 0.19" 5/32" 160,000 MS16997-50, NAS1352-3-24P 92562A245 12.67

1 3/4" Partially Threaded 7/8" Coarse 5/16" 0.19" 5/32" 160,000 MS16997-51, NAS1352-3-28P 92562A247 9.33

2" Partially Threaded 1 1/8" Coarse 5/16" 0.19" 5/32" 160,000 MS16997-52, NAS1352-3-32P 92562A253 8.57

10-32

3/8" Fully Threaded __ Fine 5/16" 0.19" 5/32" 160,000 MS16998-26, NAS1351-3-6P 92562A130 3.12

1/2" Fully Threaded __ Fine 5/16" 0.19" 5/32" 160,000 MS16998-27, NAS1351-3-8P 92562A416 2.63

5/8" Fully Threaded __ Fine 5/16" 0.19" 5/32" 160,000 MS16998-28, NAS1351-3-10P 92562A131 3.24

3/4" Fully Threaded __ Fine 5/16" 0.19" 5/32" 160,000 MS16998-29, NAS1351-3-12P 92562A428 2.70

7/8" Fully Threaded __ Fine 5/16" 0.19" 5/32" 160,000 MS16998-30, NAS1351-3-14P 92562A132 3.56

1" Fully Threaded __ Fine 5/16" 0.19" 5/32" 160,000 MS16998-31, NAS1351-3-16P 92562A434 2.73

1 1/4" Partially Threaded 7/8" Fine 5/16" 0.19" 5/32" 160,000 MS16998-32, NAS1351-3-20P 92562A133 3.68

1 1/2" Partially Threaded 1 1/8" Fine 5/16" 0.19" 5/32" 160,000 MS16998-33, NAS1351-3-24P 92562A134 4.04

1 3/4" Partially Threaded 7/8" Fine 5/16" 0.19" 5/32" 160,000 MS16998-34, NAS1351-3-28P 92562A135 5.80

2" Partially Threaded 1 1/8" Fine 5/16" 0.19" 5/32" 160,000 MS16998-35, NAS1351-3-32P 92562A136 6.32

1/4"-20

3/8" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-57, NAS1352-4-6P 92562A712 8.00

1/2" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-58, NAS1352-4-8P 92562A257 3.13

5/8" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-59, NAS1352-4-10P 92562A137 3.27

3/4" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-60, NAS1352-4-12P 92562A263 4.00

7/8" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-61, NAS1352-4-14P 92562A138 4.77

1" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-62, NAS1352-4-16P 92562A271 3.67

1 1/4" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 160,000 MS16997-63, NAS1352-4-20P 92562A273 4.33

1 1/2" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 160,000 MS16997-64, NAS1352-4-24P 92562A276 6.00

1 3/4" Partially Threaded 1 1/4" Coarse 3/8" 1/4" 3/16" 160,000 MS16997-65, NAS1352-4-28P 92562A279 6.25

2" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 160,000 MS16997-66, NAS1352-4-32P 92562A281 6.67

2 1/4" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 160,000 MS16997-67, NAS1352-4-36P 92562A139 10.30

2 1/2" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 160,000 MS16997-68, NAS1352-4-40P 92562A140 15.30

1/4"-28

1/2" Fully Threaded __ Fine 3/8" 1/4" 3/16" 160,000 MS16998-41, NAS1351-4-8P 92562A141 6.00

5/8" Fully Threaded __ Fine 3/8" 1/4" 3/16" 160,000 MS16998-42, NAS1351-4-10P 92562A142 4.54

3/4" Fully Threaded __ Fine 3/8" 1/4" 3/16" 160,000 MS16998-43, NAS1351-4-12P 92562A588 3.60

7/8" Fully Threaded __ Fine 3/8" 1/4" 3/16" 160,000 MS16998-44, NAS1351-4-14P 92562A143 5.19

1" Fully Threaded __ Fine 3/8" 1/4" 3/16" 160,000 MS16998-45, NAS1351-4-16P 92562A596 4.50

1 1/4" Fully Threaded __ Fine 3/8" 1/4" 3/16" 160,000 MS16998-46, NAS1351-4-20P 92562A144 7.07

1 1/2" Partially Threaded 1" Fine 3/8" 1/4" 3/16" 160,000 MS16998-47, NAS1351-4-24P 92562A605 5.50

1 3/4" Partially Threaded 1 1/4" Fine 3/8" 1/4" 3/16" 160,000 MS16998-48, NAS1351-4-28P 92562A612 5.77

2" Partially Threaded 1" Fine 3/8" 1/4" 3/16" 160,000 MS16998-49, NAS1351-4-32P 92562A145 7.23

2 1/4" Partially Threaded 1 1/4" Fine 3/8" 1/4" 3/16" 160,000 MS16998-50, NAS1351-4-36P 92562A146 8.07

5/16"-18

3/4" Fully Threaded __ Coarse 15/32" 5/16" 1/4" 160,000 MS16997-78, NAS1352-5-12P 92562A299 4.33

7/8" Fully Threaded __ Coarse 15/32" 5/16" 1/4" 160,000 MS16997-79, NAS1352-5-14P 92562A147 6.51

1" Fully Threaded __ Coarse 15/32" 5/16" 1/4" 160,000 MS16997-80, NAS1352-5-16P 92562A304 4.67

1 1/4" Fully Threaded __ Coarse 15/32" 5/16" 1/4" 160,000 MS16997-81, NAS1352-5-20P 92562A306 6.00

1 1/2" Fully Threaded __ Coarse 15/32" 5/16" 1/4" 160,000 MS16997-82, NAS1352-5-24P 92562A309 6.33

1 3/4" Partially Threaded 1 1/8" Coarse 15/32" 5/16" 1/4" 160,000 MS16997-83, NAS1352-5-28P 92562A312 9.00

2" Partially Threaded 1 3/8" Coarse 15/32" 5/16" 1/4" 160,000 MS16997-84, NAS1352-5-32P 92562A315 12.00

2 1/2" Partially Threaded 1 3/8" Coarse 15/32" 5/16" 1/4" 160,000 MS16997-86, NAS1352-5-40P 92562A148 23.77

3/8"-16

1/2" Fully Threaded __ Coarse 9/16" 3/8" 5/16" 160,000 MS16997-95, NAS1352-6-8P 92562A149 30.01

3/4" Fully Threaded __ Coarse 9/16" 3/8" 5/16" 160,000 MS16997-97, NAS1352-6-12P 92562A341 13.33

1" Fully Threaded __ Coarse 9/16" 3/8" 5/16" 160,000 MS16997-99, NAS1352-6-16P 92562A346 6.67

1 1/4" Fully Threaded __ Coarse 9/16" 3/8" 5/16" 160,000 MS16997-100, NAS1352-6-20P 92562A349 6.33

1 1/2" Fully Threaded __ Coarse 9/16" 3/8" 5/16" 160,000 MS16997-101, NAS1352-6-24P 92562A352 16.00

1 3/4" Partially Threaded 1 1/4" Coarse 9/16" 3/8" 5/16" 160,000 MS16997-102, NAS1352-6-28P 92562A355 41.14

2" Partially Threaded 1 1/2" Coarse 9/16" 3/8" 5/16" 160,000 MS16997-103, NAS1352-6-32P 92562A358 21.00

2 1/4" Partially Threaded 1 1/4" Coarse 9/16" 3/8" 5/16" 160,000 MS16997-104, NAS1352-6-36P 92562A361 26.60

2 1/2" Partially Threaded 1 1/2" Coarse 9/16" 3/8" 5/16" 160,000 MS16997-105, NAS1352-6-40P 92562A364 43.50

2 3/4" Partially Threaded 1 1/4" Coarse 9/16" 3/8" 5/16" 160,000 MS16997-106, NAS1352-6-44P 92562A367 53.88