Plasplugs - SBP 503 Solid Wall Super Grips™ Fixings Brown (100)
They are available in 3 different sizes/colours. The brown wall plugs are heavy-duty and will accept screws No 8-14 (4.5-7mm). Brown: Heavy-duty, accepts screws No.8-14 (4.5-7mm). Yellow: Regular-duty, accepts screws No.4-8 (3-4.5mm).