National Bolt & Nut Corporation Datasheets for Screws

A screw is a wide-encompassing type of hardware fastener that attributes its mechanical capabilities to the helical groove that extends around the circumference of the device's shank. These threads provide the friction and traction that serves a screw's purpose: to assemble or position two workpieces in relation to each other. While used synonymously, screws and bolts are not mechanical clones.


Screws: Learn more

Product Name Notes
Hex Head Cap Screw 1/4 - 5/8" DIAMETER - HEX HEAD CAP SCREW - GRADE 5 Meeting ANSI B18.2.1 dimensional specifications, our series of grade 5, 1/4 - 5/8 inch diameter hex head cap...
Hex Head Cap Screw 1/4 - 5/8" DIAMETER HEX HEAD CAP SCREW - GRADE 8 National Bolt & Nut offers a series of 1/4 - 5/8 inch diameter hex head cap screws that meet...
Hex Head Cap Screw 3/4 - 2" DIAMETER - HEX HEAD CAP SCREW - GRADE 5 Our Grade 5, 3/4 - 2 inch diameter hex head cap screws meet ANSI B18.2.1 dimensional specifications and...
Hex Head Cap Screw 3/4 - 2" DIAMETER HEX HEAD CAP SCREW - GRADE 8 At National Bolt & Nut, our 3/4 - 2 inch diameter hex head cap screws feature rolled threads and...
Button Head Hex Socket Cap Screws BUTTON HEAD HEX SOCKET CAP SCREWS Featuring a six-sided hexagon socket and constructed from highly durable alloy steel material, National Bolt & Nut's button head hex socket cap screws possess...
Flat Head Slotted Cap Screws FLAT HEAD SLOTTED CAP SCREWS Dimensions per ANSI B18.6.2 82° countersink angle Other materials and finishes available. For further information, call or send an information request. Cap screws are threaded...
Hex Head Bolts / Hex Cap Screws HEX HEAD BOLTS/HEX CAP SCREWS Head dimensions per ANSI B18.2.1 Threaded to head We also stock 1/4" thru 2" diameter and from 1/2 thru 15" in length. Other materials and...
Hex Head Cap Screw - Left Hand Thread HEX HEAD CAP SCREW - LEFT HAND THREAD - GRADE 5 Offering secure binding for construction and machinery parts, our hex head cap screws feature left hand, rolled threads and...
Hex Socket Head Cap Screws HEX SOCKET HEAD CAP SCREWS National Bolt & Nut offers a large selection of coarse and fine threaded hex socket head cap screws to meet your unique application requirements. And...
Hex Socket Set Screws HEX SOCKET SET SCREWS National Bolt & Nut's premium line of hex socket set screws are most regularly used to secure one object against another object, and are ideal for...
Hex Washer Head Tapping Screws HEX WASHER HEAD TAPPING SCREWS As part of our line of premium tapping screws, our hex washer head tapping screws feature unique thread forming locking threads and possess a clear...
Metric Flat Head Hex Socket Cap Screws METRIC FLAT HEAD HEX SOCKET CAP SCREWS Meeting ANSI B18.3.5M dimensional specifications, our line of coarse threaded metric flat head hex socket cap screws are manufactured in various thread sizes...
Metric Hex Head Cap Screw METRIC HEX HEAD CAP SCREW Dimensions per ANSI B18.2.3.1M Dimensions standardized with ISO 4014 Other materials and finishes available. For further information, call or send an information request. Cap screws...
Metric Hex Socket Head Cap Screws METRIC HEX SOCKET HEAD CAP SCREWS Meeting ANSI B18.3.1M dimensional requirements, our line of coarse threaded metric hex socket head cap screws come equipped with various thread sizes, designed to...
Pan Head Cross Recessed Tapping Screws PAN HEAD CROSS RECESSED TAPPING SCREWS We offer a series of pan head cross recessed tapping screws designed for steel applications. Our pan head cross recessed tapping screws are heat...
Custom Screws and Bolts Serving a wide array of industries from marine and mining to construction and electronics, our custom fasteners can be used for a broad variety of applications, including boilers, bridges, hydraulics,...
Socket Head Shoulder Screws SOCKET HEAD SHOULDER SCREWS National Bolt & Nut offers a wide selection of socket head shoulder screws that meet ANSI B18.3 dimensional specifications. Made from high-strength alloy steel, our socket...