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    245 Products

    Plastic-Knurled-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Plastic-Knurled-Head Thumb Screws.
    Combine the strength of stainless steel with a lightweight head that won't rust. These thumb screws are an economical alternative to fully metal thumb screws. The knurled texture of the head creates extra grip as you twist.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Dia.
    Ht.
    Temp. Range,
    ° F
    Threading
    Tensile
    Strength
    Choose a Head Color
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel with Acetal Head
     
    4-40
    1/4"5/16"11/64"32 to 180Fully ThreadedNot RatedBlack, Red2591185A233000000
    3/8"5/16"11/64"32 to 180Fully ThreadedNot RatedBlack, Red2591185A23700000
    1/2"5/16"11/64"32 to 180Fully ThreadedNot RatedBlack, Red2591185A24100000
    5/8"5/16"11/64"32 to 180Fully ThreadedNot RatedBlack, Red2591185A24500000
    3/4"5/16"11/64"32 to 180Fully ThreadedNot RatedBlack, Red2591185A24900000
    1"5/16"11/64"32 to 180Partially ThreadedNot RatedBlack, Red2591185A25300000
     
    6-32
    1/4"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A25700000
    3/8"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A26100000
    1/2"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A26500000
    5/8"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A26900000
    3/4"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A27300000
    7/8"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A27700000
    1"3/8"3/16"32 to 180Fully ThreadedNot RatedBlack, Red2591185A28100000
     
    8-32
    1/4"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A28500000
    3/8"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A28900000
    1/2"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A29300000
    5/8"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A29700000
    3/4"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A30100000
    7/8"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A30500000
    1"1/2"7/32"32 to 180Fully ThreadedNot RatedBlack, Red2591185A30900000
     
    10-24
    3/8"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A34200000
    1/2"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A34600000
    5/8"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A35000000
    3/4"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A35400000
    7/8"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red1091185A3580000
    1"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red1091185A3620000
     
    10-32
    3/8"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A36600000
    1/2"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A37000000
    5/8"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A37400000
    3/4"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red2591185A37800000
    7/8"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red1091185A3820000
    1"5/8"1/4"32 to 180Fully ThreadedNot RatedBlack, Red1091185A3860000
    1 1/2"5/8"1/4"32 to 180Partially ThreadedNot RatedBlack, Red1091185A3900000
     
    1/4"-20
    3/8"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A3940000
    1/2"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A3980000
    5/8"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4020000
    3/4"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4060000
    7/8"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4100000
    1"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4140000
    1 1/4"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4180000
    1 1/2"3/4"5/16"32 to 180Partially ThreadedNot RatedBlack, Red1091185A42200000
    1 3/4"3/4"5/16"32 to 180Partially ThreadedNot RatedBlack, Red1091185A42600000
    2"3/4"5/16"32 to 180Partially ThreadedNot RatedBlack, Red591185A4300000
     
    1/4"-28
    3/8"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4550000
    1/2"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4590000
    5/8"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4630000
    3/4"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A4670000
    7/8"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A47100000
    1"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A47500000
    1 1/4"3/4"5/16"32 to 180Fully ThreadedNot RatedBlack, Red1091185A47900000
     
    5/16"-18
    1/2"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red1091185A48300000
    5/8"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red1091185A48700000
    3/4"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A4910000
    7/8"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A4950000
    1"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A4990000
    1 1/4"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A50300000
    1 1/2"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A5070000
     
    5/16"-24
    1/2"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A5110000
    5/8"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A51500000
    3/4"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A5190000
    7/8"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A5230000
    1"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A5270000
    1 1/4"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A53100000
    1 1/2"1"13/32"32 to 180Fully ThreadedNot RatedBlack, Red591185A5350000
     
    M3 × 0.5 mm
    6 mm9.6 mm4.4 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5510000
    8 mm9.6 mm4.4 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5520000
    10 mm9.6 mm4.4 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5530000
    12 mm9.6 mm4.4 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5540000
    16 mm9.6 mm4.4 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5550000
    20 mm9.6 mm4.4 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5560000
     
    M4 × 0.7 mm
    6 mm13 mm5.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5570000
    8 mm13 mm5.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5580000
    10 mm13 mm5.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5590000
    12 mm13 mm5.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5610000
    16 mm13 mm5.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5620000
    20 mm13 mm5.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5630000
     
    M5 × 0.8 mm
    8 mm16 mm6.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5640000
    10 mm16 mm6.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5650000
    12 mm16 mm6.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5660000
    16 mm16 mm6.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5670000
    20 mm16 mm6.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5680000
    25 mm16 mm6.5 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5690000
     
    M6 × 1 mm
    10 mm19 mm7.6 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5710000
    10 mm26 mm7.8 mm32 to 180Fully ThreadedNot RatedBlack, Red1096016A57200000
    12 mm19 mm7.6 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5730000
    12 mm26 mm7.8 mm32 to 180Fully ThreadedNot RatedBlack, Red1096016A57400000
    16 mm19 mm7.6 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5750000
    16 mm26 mm7.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red1096016A5760000
    20 mm19 mm7.6 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5770000
    20 mm26 mm7.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red1096016A5780000
    25 mm19 mm7.6 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5790000
    25 mm26 mm7.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow1096016A5810000
     
    M8 × 1.25 mm
    12 mm26 mm9.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red596016A5820000
    16 mm26 mm9.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow596016A5830000
    20 mm26 mm9.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red, Yellow596016A5840000
    25 mm26 mm9.8 mm32 to 180Fully ThreadedNot RatedBlack, Yellow596016A5850000
    30 mm26 mm9.8 mm32 to 180Fully ThreadedNot RatedBlack, Gray, Red596016A58600000
     

    Six-Arm Plastic-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Six-Arm Plastic-Head Thumb Screws.
    These thumb screws have the largest head of any we offer. They're often found on stops, plates, and jigs. The six arms leave extra space to fit your fingers for easy twisting. These thumb screws combine the strength of stainless steel with a lightweight plastic head that won't rust.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Dia.
    Ht.
    Temp. Range,
    ° F
    Color
    Threading
    Tensile
    Strength
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel with Acetal Head
     
    1/4"-20
    3/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A801000000
    1/2"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80300000
    5/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80500000
    3/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80700000
    7/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A80900000
    1"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A81100000
    1 1/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A81300000
    1 1/2"1 1/2"15/32"32 to 180BlackPartially ThreadedNot Rated1091185A81500000
    1 3/4"1 1/2"15/32"32 to 180BlackPartially ThreadedNot Rated591185A8170000
    2"1 1/2"15/32"32 to 180BlackPartially ThreadedNot Rated591185A8190000
     
    1/4"-28
    3/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82100000
    1/2"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82300000
    5/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82500000
    3/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82700000
    7/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A82900000
    1"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A83100000
    1 1/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated1091185A83300000
     
    5/16"-18
    1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated1091185A83500000
    5/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8370000
    3/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8390000
    7/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8410000
    1"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8430000
    1 1/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8450000
    1 1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8470000
     
    5/16"-24
    1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8490000
    5/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8510000
    3/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A85300000
    7/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8550000
    1"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8570000
    1 1/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8590000
    1 1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A8610000
     
    3/8"-16
    3/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A8630000
    7/8"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A8650000
    1"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A8670000
    1 1/4"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A86900000
    1 1/2"1 1/2"15/32"32 to 180BlackFully ThreadedNot Rated591185A87100000
     
    M6 × 1 mm
    10 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A50100000
    12 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A50500000
    16 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A50900000
    20 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A51300000
    25 mm38 mm12.2 mm32 to 180BlackFully ThreadedNot Rated1096016A51700000
     
    M8 × 1.25 mm
    12 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6020000
    16 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6060000
    20 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6100000
    25 mm38 mm10 mm32 to 180BlackFully ThreadedNot Rated596016A6140000
     

    Hex-Drive Plastic-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Hex-Drive Plastic-Head Thumb Screws.
    Twist these thumb screws with a hex key when you need more torque than fingers can provide. You can also use a hex key to unfasten them in cramped spaces such as small control boxes. When fastening these thumb screws by hand, the knurled texture of the head creates extra grip as you twist. These thumb screws combine the strength of stainless steel with a lightweight plastic head that won't rust.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Dia.
    Ht.
    Temp. Range,
    ° F
    Color
    Threading
    Tensile
    Strength
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel with Acetal Head
     
    4-40
    9/32"5/16"11/64"32 to 180BlackFully ThreadedNot Rated2598704A105000000
    13/32"5/16"11/64"32 to 180BlackFully ThreadedNot Rated2598704A11000000
    17/32"5/16"11/64"32 to 180BlackFully ThreadedNot Rated2598704A11500000
    21/32"5/16"11/64"32 to 180BlackFully ThreadedNot Rated1098704A1200000
    25/32"5/16"11/64"32 to 180BlackFully ThreadedNot Rated1098704A1250000
    29/32"5/16"11/64"32 to 180BlackPartially ThreadedNot Rated1098704A1300000
     
    6-32
    9/32"3/8"3/16"32 to 180BlackFully ThreadedNot Rated1098704A2000000
    13/32"3/8"3/16"32 to 180BlackFully ThreadedNot Rated1098704A2050000
    17/32"3/8"3/16"32 to 180BlackFully ThreadedNot Rated1098704A2100000
    21/32"3/8"3/16"32 to 180BlackFully ThreadedNot Rated1098704A2150000
    25/32"3/8"3/16"32 to 180BlackFully ThreadedNot Rated1098704A2200000
    29/32"3/8"3/16"32 to 180BlackFully ThreadedNot Rated1098704A2250000
     
    8-32
    9/32"1/2"7/32"32 to 180BlackFully ThreadedNot Rated1098704A3100000
    13/32"1/2"7/32"32 to 180BlackFully ThreadedNot Rated1098704A3150000
    17/32"1/2"7/32"32 to 180BlackFully ThreadedNot Rated1098704A3200000
    21/32"1/2"7/32"32 to 180BlackFully ThreadedNot Rated1098704A3250000
    25/32"1/2"7/32"32 to 180BlackFully ThreadedNot Rated1098704A3300000
    29/32"1/2"7/32"32 to 180BlackFully ThreadedNot Rated1098704A3350000
     
    10-24
    3/8"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A4150000
    1/2"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A4200000
    5/8"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A4250000
    3/4"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A4300000
    7/8"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A4350000
    1 1/8"5/8"1/4"32 to 180BlackPartially ThreadedNot Rated1098704A4400000
     
    10-32
    3/8"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A5200000
    1/2"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A5250000
    5/8"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A5300000
    3/4"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A5350000
    7/8"5/8"1/4"32 to 180BlackFully ThreadedNot Rated1098704A5400000
    1 1/8"5/8"1/4"32 to 180BlackPartially ThreadedNot Rated1098704A5450000
     
    1/4"-20
    3/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A6050000
    1/2"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A6100000
    5/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A6150000
    3/4"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A6200000
    7/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A62500000
    1 1/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A63000000
    1 3/8"3/4"5/16"32 to 180BlackPartially ThreadedNot Rated1098704A63500000
     
    1/4"-28
    3/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A70500000
    1/2"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A71000000
    5/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A71500000
    3/4"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A72000000
    7/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A72500000
    1 1/8"3/4"5/16"32 to 180BlackFully ThreadedNot Rated1098704A73000000
    1 3/8"3/4"5/16"32 to 180BlackPartially ThreadedNot Rated1098704A73500000
     
    5/16"-18
    1/2"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A8000000
    5/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A8050000
    3/4"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A8100000
    7/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A8150000
    1 1/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A8200000
    1 3/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A8250000
     
    5/16"-24
    1/2"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A9000000
    5/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A9050000
    3/4"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A9100000
    7/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A9150000
    1 1/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A9200000
    1 3/8"1"13/32"32 to 180BlackFully ThreadedNot Rated598704A9250000
     

    Two-Arm Plastic-Head Thumb Screws

    Image of Product. Front orientation. Thumb Screws. Two-Arm Plastic-Head Thumb Screws.
    The flat, evenly spaced arms give your fingers extra leverage. These thumb screws combine the strength of stainless steel with a lightweight, plastic head that won’t corrode.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Wd.
    Ht.
    Temp. Range,
    ° F
    Color
    Threading
    Tensile
    Strength
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel with Acetal Head
     
    10-24
    1/2"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A891000000
    5/8"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A89300000
    3/4"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A89500000
    1"1"1/4"32 to 180BlackFully ThreadedNot Rated1091185A8990000
     
    10-32
    3/8"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A90100000
    1/2"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A90300000
    5/8"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A90500000
    3/4"1"1/4"32 to 180BlackFully ThreadedNot Rated2591185A90700000
    7/8"1"1/4"32 to 180BlackFully ThreadedNot Rated1091185A9090000
    1"1"1/4"32 to 180BlackFully ThreadedNot Rated1091185A9110000
    1 1/2"1"1/4"32 to 180BlackPartially ThreadedNot Rated1091185A9130000
     
    1/4"-20
    3/8"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9150000
    1/2"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9170000
    5/8"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9190000
    3/4"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9210000
    7/8"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9230000
    1"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9250000
    1 1/4"1 1/4"5/16"32 to 180BlackFully ThreadedNot Rated1091185A9270000
    1 1/2"1 1/4"5/16"32 to 180BlackPartially ThreadedNot Rated1091185A9290000
    2"1 1/4"5/16"32 to 180BlackPartially ThreadedNot Rated591185A9330000
     
    5/16"-18
    1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated1091185A9550000
    5/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated1091185A95700000
    3/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A9590000
    7/8"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A9610000
    1"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A9630000
    1 1/4"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A9650000
    1 1/2"1 1/2"13/32"32 to 180BlackFully ThreadedNot Rated591185A9670000
     

    Precision-Adjust Ball-Tip Thumb Screws

    Image of Product. Back orientation. Thumb Screws. Precision-Adjust Ball-Tip Thumb Screws.
    Make precise adjustments where tight tolerances are critical. With ultra-fine threads, these thumb screws are often found on measuring devices and photonic equipment. The rolling ball tip maintains contact and swivels 360° so you can make adjustments without loosening the screw. The narrow width of the head allows these thumb screws to fit in spaces with limited clearance. The knurled texture creates extra grip as you twist. These thumb screws combine the strength of stainless steel with a lightweight plastic head that won’t rust.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Dia.
    Ht.
    Color
    Tip
    Dia.
    Threading
    Tensile Strength,
    psi
    Each
    18-8 Stainless Steel with Acetal Head
     
    3/16"-100
    3/4"3/8"7/16"Black1/8"Fully Threaded60,00097424A110000000
    1"3/8"7/16"Black1/8"Fully Threaded60,00097424A14000000
    1 1/4"3/8"7/16"Black1/8"Fully Threaded60,00097424A17000000
    1 1/2"3/8"7/16"Black1/8"Fully Threaded60,00097424A20000000
    1 3/4"3/8"7/16"Black1/8"Fully Threaded60,00097424A23000000
     
    1/4"-80
    3/4"1/2"3/4"Black3/16"Fully Threaded60,00097424A56000000
    1"1/2"3/4"Black3/16"Fully Threaded60,00097424A5900000
    1 1/4"1/2"3/4"Black3/16"Fully Threaded60,00097424A6200000
    1 1/2"1/2"3/4"Black3/16"Fully Threaded60,00097424A6500000
    2"1/2"3/4"Black3/16"Fully Threaded60,00097424A68000000
    3"1/2"3/4"Black3/16"Fully Threaded60,00097424A74000000
    3 1/2"1/2"3/4"Black3/16"Fully Threaded60,00097424A77000000
     
    Threaded Inserts
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