What's in the box:

1 X 12 Set Well Nuts with Stainless Steel Screws for Kayak Canoe Boat Marine Hardware Fasteners, M4

12pcs well nuts with stainless steel screws, great for mounting accessories on kayaks, canoes, boats, and any other marine vehicles.

Features:
12pcs well nuts with stainless steel screws.
3 sizes available for you to choose: M4, M5, M6.
Stainless steel screws prevent rust and corrosion, giving you a longer lasting hardware.
Great for mounting accessories on kayaks, canoes, boats, and any other marine vehicles.

Specifications:
Material: Nylon
Size: M4 / M5 / M6 (Optional)
M4:
Well Nut: 13 * 11mm / 0.5 * 0.4in
Screw: M4 x 20
Weight: 3g / set (1 nut + 1 screw)
M5:
Well Nut: 17 * 14mm / 0.7 * 0.6in
Screw: M5 x 25
Weight: 5g / set (1 nut + 1 screw)
M6:
Well Nut: 21 * 16mm / 0.8 * 0.6in
Screw: M6 x 30
Weight: 13g / set (1 nut + 1 screw)

Package List:
12 * Well Nut
12 * Screw