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Fasteners  |  Steel Micro Fasteners  |    

Discount prices on hard-to-find miniature steel fasteners

Miniature machine screws and nuts let you fasten the smaller parts to your robot, and without adding lots of unnecessary weight. We offer size 2-56 and 4-40 machine screws, nuts, and washers, in convenient packs of 25. All packs come in resealable "zip" style plastic bags.

We buy these fasteners in bulk so we can pass along the savings to you. Our prices are 50-75% less than what most hardware stores charge for specialty-size steel fasteners.

Steel Pan Head Machine Screw (25 pack)   Steel Pan Head Machine Screw (25 pack)

Steel pan head machine screws in 2-56 or 4-40 size. Phillips head for positive drive (use a #00 or #0 Phillips screwdriver). Pack of 25.

We sell the most commonly used lengths for small robots. Choose the desired screw size and length in the drop-down list.

SKU Number:FAST-RS-24
Size & Length:

Steel Hex Nuts (25 pack)   Steel Hex Nuts (25 pack)

Hard-to-find steel hex nuts in 2-56 and 4-40 size. Pack of 25.

Price: $0.50

  Steel Washers (25 pack)

Steel washers in #2 or #4 size, in packs of 25. The #2 washers are for 2-56 screws; the #4 washers are for 4-40 screws.

Price: $0.50

  Steel Locknut (15 pack)

Steel nylon insert hex locknut, in 2-56, 4-40, and 6-32 thread. Be sure to choose size. Sold in packs of 15, in a re-closable poly bag.

Priced at about a third what you'd pay at the hobby store. New, industrial-quality.

Price: $0.50

  Steel 4-40 Fastener Assortment

Convenient assortment of 4-40 steel fasteners, in a flip-top six-compartment plastic case. All screws are pan head Phillips. 200 pieces total. Comparable hardware store price: about $13. You get:
  • 75 4-40 hex nuts
  • 25 4-40 x 3/8" screws
  • 25 4-40 x 1/2" screws
  • 25 4-40 x 3/4" screws
  • 50 #4 washers
  • Plastic case

Price: $7.95

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