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1831 Security Screws 8 x 25mm pack of 50

Security screws for wood frames which work with picture plates having 4.5mm holes. The 6 lobes with the central pin mean that the screws can only be inserted and removed with the matching driver bit. Often known as Resistorx screws. 

Precision made in UK using A2 stainless steel with a self-tapping thread so can be used with most suitable wall plugs. 

All these security screws are No 8, 4.2mm dia, so check hole size in Picture Plates. Screws have button heads.

1831 Security screws 8 x 25mm pack of 50

See also:

1831A Security screws 8 x 25mm pack of 20

1834 Driver bit T15 for security screws

1832 Security screws 8 x 30mm pack of 50

2376 Security screws 8 x 35mm pack of 50

2804 Picture plates nickel plated 32mm pack of 100

2805 Picture plates nickel plated 38mm pack of 100

Product information updated July 2019