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    30 Products

    Wall-Mount Thread-It Screw, Bolt, and Nut Size Identifiers

    Image of Product. Front orientation. Contains Inset. Thread Size Identifiers. Wall-Mount Thread-It Screw, Bolt, and Nut Size Identifiers.
    Mount to a wall for easy access, and thread your fastener into holes or onto plugs for quick and accurate size identification.
    Mounting
    Holes
    For Use With
    For Thread
    Type
    For Thread
    Location
    For Thread Size
    Wd.
    Ht.
    Thk.
    No.
    of
    Hole
    Dia.
    Fasteners
    Included
    Each
    Inch/Metric
     
    Steel
    Screws, Bolts, Threaded Rods, NutsUNC/UNF/MetricExternal/Internal6-32, 8-32, 10-24, 10-32, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20,
    1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1 mm, M7 × 1 mm, M8 × 1 mm,
    M8 × 1.25 mm, M10 × 1 mm, M10 × 1.25 mm, M10 × 1.5 mm, M12 × 1.25 mm, M12 × 1.5 mm,
    M12 × 1.75 mm    		3"39"1/2"35/16"No00000000000000
     

    Thread-It Screw, Bolt, and Nut Size Identifiers

    Image of Product. Front orientation. Contains Inset. Thread Size Identifiers. Thread-It Screw, Bolt, and Nut Size Identifiers.
    Thread your fastener into holes or onto plugs for quick and accurate size identification.
    For Use With
    For Thread
    Type
    For Thread
    Location
    For Thread Size
    Each
    Inch
     
    Steel
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal6-32, 6-40, 8-32, 10-24, 10-32, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20,
    1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 1"-8, 1"-12    		00000000000000
     
    Inch/Metric
     
    Steel
    Screws, Bolts, Threaded Rods, NutsUNC/UNF/MetricExternal/Internal6-32, 8-32, 10-24, 10-32, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20,
    1/2"-13, 1/2"-20, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1 mm, M7 × 1 mm, M8 × 1 mm, M8 × 1.25 mm,
    M10 × 1 mm, M10 × 1.25 mm, M10 × 1.5 mm, M12 × 1.25 mm, M12 × 1.5 mm, M12 × 1.75 mm    		0000000000000
     
    Metric
     
    Steel
    Screws, Bolts, Threaded Rods, NutsMetric
    		External/InternalM3 × 0.5 mm, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1 mm, M7 × 1 mm, M8 × 1 mm, M8 × 1.25 mm, M10 × 1 mm,
    M10 × 1.25 mm, M10 × 1.5 mm, M12 × 1.25 mm, M12 × 1.5 mm, M12 × 1.75 mm, M14 × 1.5 mm, M14 × 2 mm,
    M16 × 1.5 mm, M16 × 2 mm, M20 × 1.5 mm, M20 × 2.5 mm, M24 × 2 mm, M24 × 3 mm    		0000000000000
     

    Screw, Bolt, and Nut Size Identifiers

    Image of Product. Inch. Front orientation. 7 1/2" Wide. Screw, Bolt, and Nut Size Identifiers.
    Image of Product. Inch/Metric. Front orientation. 9" Wide. Screw, Bolt, and Nut Size Identifiers.
    Image of Product. Metric. Front orientation. 3 3/16" High. Screw, Bolt, and Nut Size Identifiers.

    Inch

    Inch/Metric

    Metric

    Use on external and internal fastener threads.
    For Use With
    For Thread
    Type
    For Thread
    Location
    For Screw Size
    For Thread Pitch, mm
    For Nut Size
    Wd.
    Ht.
    Thk.
    Each
    Inch
     
    Plastic
    Screws, Bolts, Threaded Rods, Nuts—External/InternalNo. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"
    		—No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8"
    		7 1/2"2 3/8"1/64"00000000000000
     
    Inch/Metric
     
    Plastic
    Screws, Bolts, Threaded Rods, Nuts—External/InternalNo. 6, No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4", 1", M6, M7, M8, M10, M12, M14, M16, M18, M20, M22
    		—No. 8, No. 10, 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8"
    		9"3 3/4"1/64"0000000000000
     
    Metric
     
    Plastic
    Screws, Bolts, Threaded Rods, NutsMetric
    		External/InternalM6, M7, M8, M10, M12, M14, M16
    		1, 1.25, 1.5, 1.75, 2M10, M11, M13, M17, M19, M22, M245 1/4"3 3/16"1/64"0000000000000
     

    Thread Identifier Sets

    Image of Product. Front orientation. Thread Size Identifiers. Thread Identifier Sets.
    Set includes calipers and gauges to identify external and internal threads.
    Container
    For Use With
    For Thread Type
    For Thread
    Location
    Type
    Material
    Includes
    Each
    Inch/Metric
     
    Steel
    Screws, Bolts, Threaded Rods, Nuts, PipeNPT, UNC, UNF, BSPT, BSPP, MetricExternal/InternalFolding CasePlasticCaliper, Instruction Book, Two Steel Angle Gauges, Two Steel Gauges000000000000
     

    All-in-One Identifiers

    Image of Product. Front orientation. Thread Size Identifiers. All-in-One Identifiers.
    Find tube, pipe, fastener, wire, and drill bit sizes with one tool.
    For Use With
    For Screw Size
    For Drill Bit Size
    For Pipe Size
    For Pipe Fitting Size
    Wd.
    Ht.
    Each
     
    Plastic
    Screws, Bolts, Threaded Rods, Drill Bits, Nails, Nuts, Tube Fittings, Pipe, Pipe Fittings, Tubing, WireNo. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/4", 5/16", 3/8", 7/16", 1/2", M3, M4, M5, M6, M8, M10, M12
    		1/32", 3/64", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2", 65 Ga., 60 Ga., 55 Ga., 50 Ga., 45 Ga., 40 Ga., 35 Ga., 30 Ga., 25 Ga., 20 Ga., 15 Ga., 10 Ga., 5 Ga., A, F, K, P, U, Z1/16, 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 3 1/2, 4, 5, 6
    		1/16, 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2
    		10 1/2"3 1/2"0000000000000
    Screws, Bolts, Threaded Rods, Drill Bits, Nails, Nuts, Tube Fittings, Pipe, Pipe Fittings, Tubing, WireNo. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/4", 5/16", 3/8", 7/16", 1/2", M3, M4, M5, M6, M8, M10, M12
    		1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8"1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2
    		1/8, 1/4, 3/8, 1/2, 3/4, 1
    		8 11/16"4 1/4"000000000000
     

    Threads per Inch and Thread Pitch Identifiers

    Image of ProductInUse. Front orientation. Contains Border. Thread Size Identifiers. Threads per Inch and Thread Pitch Identifiers.
    Image of Product. Front orientation. Thread Size Identifiers. Threads per Inch and Thread Pitch Identifiers.
    Determine threads per inch and thread pitch on nuts, bolts, and other fasteners. Identifiers in a variety of sizes are riveted together in a fan design—pull one out and hold it against your threads to see if it fits. Once you’ve found a match, fold identifiers in to store them in your pocket or tool bag.
    Folded
    For Use With
    For Thread Type
    For Thread
    Location
    For Threads per Inch
    For Thread Pitch, mm
    No. of
    Identifiers
    Lg.
    Wd.
    Mfr.
    Mfr. Model
    No.
    Each
    Inch
     
    Steel
    Screws, Bolts, Threaded Rods, NutsBSWExternal/Internal3 1/2, 4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 44, 48,
    50, 60    		—302"1/2"Starrett47600000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal2 1/4, 2 3/8, 2 1/2, 2 5/8, 2 3/4, 2 7/8, 3, 3 1/4, 3 1/2, 4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18,
    20, 24, 28    		—273 1/2"7/8"Starrett1550000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal3 1/2, 4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32,
    34, 36    		—282 1/2"5/8"Starrett4840000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36,
    38, 40, 42    		—302 5/8"5/8"Starrett60000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36,
    38, 40, 42    		—302 3/4"1/2"——000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36,
    38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84    		—512 1/4"2 1/4"——000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36,
    38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84    		—513 3/8"3/4"Starrett47200000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 16, 18, 20, 24, 27, 28, 32, 36, 40, 44, 48, 56, 64, 72, 80—282 1/2"5/8"Starrett4740000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42, 48,
    50, 56, 60    		—302 3/4"1/2"——00000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNFExternal/Internal9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40—222 3/4"1/2"——00000000000
     
    Stainless Steel
    Screws, Bolts, Threaded Rods, NutsAcme
    		External/Internal1, 1 1/3, 1 1/2, 1 3/4, 2, 2 1/2, 3, 3 1/2, 4, 5, 6, 7, 8, 9, 10, 12—164 3/4"1"——0000000000000
     
    Inch/Metric
     
    Steel
    Screws, Bolts, Threaded Rods, NutsBSW/MetricExternal/Internal4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60, 620.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6522 3/4"1/2"——0000000000000
    Screws, Bolts, Threaded Rods, NutsBSW/MetricExternal/Internal4, 4 1/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60, 620.4, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7502 3/4"1/2"——0000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNF/MetricExternal/Internal4, 4 1/2, 5, 5 1/2, 6, 7, 8, 9, 10, 11, 11 1/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 28, 29, 30, 32, 34, 36,
    38, 40, 42    		0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7512 3/4"1/2"——000000000000
    Screws, Bolts, Threaded Rods, NutsUNC/UNF/MetricExternal/Internal4, 6, 8, 10, 11, 11 1/2, 12, 13, 16, 20, 28, 32, 40, 560.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6282 3/4"1/2"——000000000000
     
    Metric
     
    Steel
    Screws, Bolts, Threaded Rods, NutsMetric
    		External/Internal—0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 1, 1.1, 1.2, 1.25, 1.3, 1.4, 1.5, 1.6, 1.7, 1.75, 1.8, 1.9, 2, 2.5282 1/2"1/2"Starrett156M000000000000
    Screws, Bolts, Threaded Rods, NutsMetric
    		External/Internal—0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 1, 1.1, 1.2, 1.25, 1.3, 1.4, 1.5, 1.6, 1.7, 1.75, 1.8, 1.9, 2, 2.5282 3/4"1/2"——000000000000
    Screws, Bolts, Threaded Rods, NutsMetric
    		External/Internal—0.4, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7222 3/4"1/2"——000000000000
    Screws, Bolts, Threaded Rods, NutsMetric
    		External/Internal—0.5, 0.75, 1, 1.1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5273 1/2"5/8"Starrett159M0000000000000
     
    Stainless Steel
    Screws, Bolts, Threaded Rods, NutsMetric Trapezoidal
    		External/Internal—2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 20124 3/4"3/4"——0000000000000
     
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