1/4-20 x 5-1/2\" Flat Head Machine Screws Stainless Steel 18-8 Qty 250 For Sale

1/4-20 x 5-1/2\


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1/4-20 x 5-1/2\" Flat Head Machine Screws Stainless Steel 18-8 Qty 250:
$216.66

1/4-20 x 5-1/2\" Flat Head Machine Screws Stainless Steel 18-8 Qty 250

Machine screws are often used with nuts but also often driven into tapped holes (without nuts). They might be considered a screw or a bolt based on the Machinery\'s Handbook distinction. In practice, they tend to be mostly available in smaller sizes and the smaller sizes are referred to as screws or less ambiguously as machine screws, although some kinds of machine screw can be referred to as stove bolts. A flat head is A head with flat top and a conical bearing surface (bottom). Designed to be Countersunk. Rod with spiral threads the entire length and with one flat end and a head on other end. Holds object to another object that has a pre-threaded hole, frequently a nut. Usually manufactured from metal. Can be rotated into or out of the object using a screwdriver or wrench.

General Product InformationFlat Head Screws Length is Measured from the top of the Head to the Tip
  • Head Style : Flat
  • Drive Style : Phillips
  • Drive Size : #3
  • Thread Size : 1/4-20
  • Overall Length : 5-1/2\"
  • Material : Stainless Steel 18-8
  • Quantity of Fasteners in Package : 250
Detailed Product Information:
  • Head Diameter :
  • Head Height : 0.147\"
  • Countersink Angle : 82 Degree
  • Thread Diameter : 0.250\"
  • Threads Per Inch (TPI) : 20
  • Coarse or Fine Thread : Coarse
  • Thread Coverage : Full Thread
  • Thread Length : 5.50
Key Notes:
  • Stainless steel flat head machine screws with a phillips drive and a machine thread that will match up to an internally threaded item with the same machined thread patern
  • Flat head screws have a flat top that tapers down to a cone shape at an 82 degree and will sit flush into a countersunk hole giving a finished appearance
  • These machine screws are made of a high quality 18-8 grade stainless steel that offers a great corrosion and chemical resistance that will stand strong against the elements providing a long lasting product and giving many years of service
  • 82 degree is the most common countersink screw head angle for machine screws with a flat head
  • Flat head countersunk machine screws length are measured from the top of the flat head to the end of the thread
  • Shipping:

    All orders placed before 3:30 pm EST Will Ship Same Day

  • Tracking is provided on ALL Orders
  • Priority Mail Shipping service is offered at a discount of only $3.95
  • UPS Ground
  • UPS Next Day Air is available, Please inquire for pricing
  • Returns : ALL returns are accepted if returned within 60 days.
  • Money Back or exchange guaranteed.
  • NO Restocking Fees.
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