Wood Wet Environment Nuts YuGtcen 30 PCS M10 Flange Nut Thread Hardware Nuts,304 Stainless 304 Stainless Steel Hex Nuts Hardwear Nut Type: Hex Serrated Flange Nut; System of Measurement: Inch., Size: Inside diameter 5., 9-23., 7mm to choose; Outside diameter is 7., 6-31., 3mm. Stainless Steel Flange Nuts are regular stainless steel nuts with a flange attached below the head. The flanged nuts have higher grip on the material surface Pitch of thread is 1., 25mm M10 Hexagon Serrated Flange Nut Galvanised, Grade 8, Tapped Oversize, DIN 6923. SKU Number: 2841035. 8844 in stock at Watford Package Included 150 x Serrated Flange Hex Nuts Hex Lock Nut With Washer 10-Pack 1/2-13 Serrated Flange Lock Nuts - Black Oxide Stainless Steel 304, Hex Flange Nut With Washer Stainless Steel Nuts Application: Flange Nuts are great to have around for use in wood and wet environments.