Tamper Proof Machine Screws, Spanner Oval Head, Stainless Steel 18-8, 1/4"-20

Tamper Proof Machine Screws, Spanner Oval Head, Stainless Steel 18-8, 1/4"-20

Diameter - Thread Pitch: 1/4"-20


  • Spanner (snake eye) drive is considered an uncommon drive style making screws with this head type difficult to remove without the proper bit
  • Countersunk head with a raised domed top
  • A machine screw is commonly identified by its small size
  • Used to secure materials that may be tampered with
  • Ideal for freshwater moisture environments
  • Rust and corrosion resistant

1/4-20 Spanner oval head security machine screws are available in grade 18-8 stainless steel.

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Size/SKU
Select Package Quantity Price
SubTotal
1/4"-20 x 3/4"
1/4"-20 x 3/4"
1 $1.16 (1.16/ea)
100 $79.00 (0.79/ea)
1000 $650.00 (0.65/ea)
Subtotal: $0.00 /
1/4"-20 x 1"
1/4"-20 x 1"
1 $1.31 (1.31/ea)
100 $89.00 (0.89/ea)
1000 $730.00 (0.73/ea)
Subtotal: $0.00 /
1/4"-20 x 1-1/2"
1/4"-20 x 1-1/2"
1 $1.58 (1.58/ea)
100 $107.00 (1.07/ea)
1000 $880.00 (0.88/ea)
Subtotal: $0.00 /
1/4"-20 x 2"
1/4"-20 x 2"
1 $1.67 (1.67/ea)
100 $112.00 (1.12/ea)
1000 $940.00 (0.94/ea)
Subtotal: $0.00 /

Frequently Used With

1 $0.09 (0.09/ea)
100 $3.00 (0.03/ea)
1000 $20.00 (0.02/ea)
Subtotal: $0.00
1 $0.08 (0.08/ea)
100 $4.00 (0.04/ea)
1000 $30.00 (0.03/ea)
Subtotal: $0.00
1 $0.09 (0.09/ea)
100 $6.00 (0.06/ea)
1000 $50.00 (0.05/ea)
Subtotal: $0.00
1 $0.15 (0.15/ea)
100 $11.00 (0.11/ea)
1000 $90.00 (0.09/ea)
Subtotal: $0.00
1 $1.98 (1.98/ea)
100 $164.00 (1.64/ea)
1000 $1,600.00 (1.6/ea)
Subtotal: $0.00

Product Specifications
Corrosion Resistant
Yes
Drive Style
Spanner
Grade
18-8
Head Diameter
Max 0.507 - Min 0.452
Head Style
Oval
Material
Stainless Steel
Overall Head Height
Max 0.232 - Min 0.178
Product Type
Spanner Oval Head Machine Screws are Fully Threaded
Spanner Drive
#14
System of Measurement (Unit)
Inch
Thread Diameter
1/4" (#14) Max 0.2489 - Min 0.2408
Thread Direction
Right Hand
Thread Pitch (Count)
20 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances