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Machine screws are cylindrical fasteners used to join two items, commonly made of steel or stainless steel, and available in multiple sizes and finishes. SEMS screws, a subtype of machine screws, feature a washer-like, serrated head to maintain grip and prevent loosening. Weld-on screws, designed for welding onto surfaces, are marked by a threaded shank with a weld-nut on the end, available in a range of sizes and finishes, and typically constructed from steel or stainless steel.
STANLEYENGINEEREDFAST-STAINLESSSTEELTORXPLUSMACHINESCREWS-100x100
Unit of Measure
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Item #

Item Name

Brand

Measurement

Thread Size

Material

Finish

Length

Head

Drive

BBI Size

Size

Point

583693 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 1/4-20 N/A Steel N/A Zinc N/A 5 1/2 N/A Round N/A Slotted N/A 1/4"-20x5 1/2",(FT) N/A 1/4"-20x5 1/2",(Fully Threaded) N/A
583695 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 1/4-20 N/A Steel N/A Zinc N/A 6 N/A Round N/A Slotted N/A 1/4"-20x6",(FT) N/A 1/4"-20x6",(Fully Threaded) N/A
583715 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 1/2 N/A Round N/A Slotted N/A 5/16"-18x1/2",(FT) N/A 5/16"-18x1/2",(Fully Threaded) N/A
583719 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 5/8 N/A Round N/A Slotted N/A 5/16"-18x5/8",(FT) N/A 5/16"-18x5/8",(Fully Threaded) N/A
583723 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 3/4 N/A Round N/A Slotted N/A 5/16"-18x3/4",(FT) N/A 5/16"-18x3/4",(Fully Threaded) N/A
583727 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 7/8 N/A Round N/A Slotted N/A 5/16"-18x7/8",(FT) N/A 5/16"-18x7/8",(Fully Threaded) N/A
583731 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 1 N/A Round N/A Slotted N/A 5/16"-18x1",(FT) N/A 5/16"-18x1",(Fully Threaded) N/A
583735 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 1 1/8 N/A Round N/A Slotted N/A 5/16"-18x1 1/8" N/A 5/16in-18 N/A
583737 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 1 1/4 N/A Round N/A Slotted N/A 5/16"-18x1 1/4",(FT) N/A 5/16"-18x1 1/4",(Fully Threaded) N/A
583747 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 1 1/2 N/A Round N/A Slotted N/A 5/16"-18x1 1/2",(FT) N/A 5/16"-18x1 1/2",(Fully Threaded) N/A
583755 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 1 3/4 N/A Round N/A Slotted N/A 5/16"-18x1 3/4",(FT) N/A 5/16"-18x1 3/4",(Fully Threaded) N/A
583763 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 2 N/A Round N/A Slotted N/A 5/16"-18x2",(FT) N/A 5/16"-18x2",(Fully Threaded) N/A
583767 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 2 1/4 N/A Round N/A Slotted N/A 5/16"-18x2 1/4",(FT) N/A 5/16"-18x2 1/4",(Fully Threaded) N/A
583771 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 2 1/2 N/A Round N/A Slotted N/A 5/16"-18x2 1/2",(FT) N/A 5/16"-18x2 1/2",(Fully Threaded) N/A
583773 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 2 3/4 N/A Round N/A Slotted N/A 5/16"-18x2 3/4",(FT) N/A 5/16"-18x2 3/4",(Fully Threaded) N/A
583779 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 3 N/A Round N/A Slotted N/A 5/16"-18x3",(FT) N/A 5/16"-18x3",(Fully Threaded) N/A
583781 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 3 1/4 N/A Round N/A Slotted N/A 5/16"-18x3 1/4" N/A 5/16in-18 N/A
583783 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 3 1/2 N/A Round N/A Slotted N/A 5/16"-18x3 1/2",(FT) N/A 5/16"-18x3 1/2",(Fully Threaded) N/A
583787 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 4 N/A Round N/A Slotted N/A 5/16"-18x4",(FT) N/A 5/16"-18x4",(Fully Threaded) N/A
583789 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 4 1/2 N/A Round N/A Slotted N/A 5/16"-18x4 1/2",(FT) N/A 5/16"-18x4 1/2",(Fully Threaded) N/A
583791 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 5 N/A Round N/A Slotted N/A 5/16"-18x5",(FT) N/A 5/16"-18x5",(Fully Threaded) N/A
583793 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 5 1/2 N/A Round N/A Slotted N/A 5/16"-18x5 1/2",(FT) N/A 5/16"-18x5 1/2",(Fully Threaded) N/A
583795 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 5/16-18 N/A Steel N/A Zinc N/A 6 N/A Round N/A Slotted N/A 5/16"-18x6",(FT) N/A 5/16"-18x6",(Fully Threaded) N/A
583815 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 3/8-16 N/A Steel N/A Zinc N/A 1/2 N/A Round N/A Slotted N/A 3/8"-16x1/2",(FT) N/A 3/8"-16x1/2",(Fully Threaded) N/A
583819 N/A Screws - Machine Screws, Sems , Weld and More N/A ABE Fasteners or Other N/A Unified N/A 3/8-16 N/A Steel N/A Zinc N/A 5/8 N/A Round N/A Slotted N/A 3/8"-16x5/8",(FT) N/A 3/8"-16x5/8",(Fully Threaded) N/A
Unit of Measure
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