Collection:
SEMS Screws
SEMS screws are pre-assembled fasteners combining a screw and captive washer in a single unit. The integrated washer distributes load across a wider surface area, improving clamping performance and reducing installation time. Commonly used in manufacturing, electrical assemblies, and applications where vibration resistance and efficiency are important.
M4 x 20mm SEMS Screws Torx - Carton 1000
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M4 x 20mm SEMS Screws Torx - Box 200
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M4 x 16mm SEMS Screws Torx - Carton 1000
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M4 x 16mm SEMS Screws Torx - Box 200
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M4 x 12mm SEMS Screws Torx - Carton 1000
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M4 x 12mm SEMS Screws Torx - Box 200
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M4 x 10mm SEMS Screws Torx - Carton 1000
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M4 x 10mm SEMS Screws Torx - Box 200
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M4 x 8mm SEMS Screws Torx - Carton 1000
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M4 x 8mm SEMS Screws Torx - Box 200
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M3 x 12mm SEMS Screws Torx - Carton 1000
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M3 x 12mm SEMS Screws Torx - Box 200
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M3 x 10mm SEMS Screws Torx - Carton 1000
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M3 x 10mm SEMS Screws Torx - Box 200
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M3 x 8mm SEMS Screws Torx - Box 200
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M3 x 6mm SEMS Screws Torx - Carton 1000
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M3 x 6mm SEMS Screws Torx - Box 200
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About Our Nuts and Bolts Range
Fasten Up carries hex bolts and nuts in zinc plated, galvanised and 304 and 316 stainless steel, including 8.8 high tensile and structural assemblies, plus coach bolts, U-bolts, eye bolts, purlin bolts, machine screws, socket screws, grub screws and threaded rod. Nuts and washers are stocked to suit, from standard hex nuts and nyloc locking nuts through to flat, spring and structural washers.
Thread size, length, grade and finish are listed on every product so you can pick the right bolt and nut combination for the connection. Everything is packed in trade quantities, dispatched quickly from Chelsea Heights in Melbourne, with delivery Australia-wide or click and collect.