EXCLUSIVE Otter Chipboard Screws 8g x 20mm Pack of 500 SKU: 231722 MODEL: CHSD08205 Error. try again later You've successfully joined the club $ 30 .55 pack of 500 Available on orders $50 to $1500.More info × Mitre 10 Variants Suitable for indoor use fixing to timber. Countersunk self-embedding head. Self-drilling needle point. Electroplated zinc with a passivated finish. Features and benefits Coarse thread. Needle point.