MACO Rail Inline Espag Window Lock - BS20, 7.7mm, 1000mm

• High-security – Bidirectional mushroom cams strongly engage both sides of a single striker plate
• PAS 24 compliant – designed for enhanced resistance against forced entry via jemmying and sash separation
• Easy installation – one-piece inline design requires no cropping or extensions
• Flexible sizing – Suits 200–1200mm sash sizes with 20mm or 22mm backset options
• Wide compatibility – Works with standard 12mm and shallow Eurogrooves
• Seasonal adjustment – Eccentric cam compression control of ±1mm for summer/winter weathersealing
• Long-term durability – Silverlook-Evo finish provides high corrosion resistance with self-healing
• 10-Year Guarantee – Eligible for the MACO Secure Plus scheme, offering peace of mind and insurance excess cover

MACO Reverse Action In Line (R.A.I.L.) Espag Window Lock PAS 24 compliant twin cam security in a single inline system High-security Reverse Action In Line (R.A.I.L.) espagnolette window lock featuring a twin cam mechanism. Opposing 7.7mm mushroom locking points clamp onto both sides of a single striker plate, delivering exceptional resistance to jemmying and sash separation while achieving PAS 24 compliant security without the need for shootbolts. Available in 20mm or 22mm backsets, covering sash rebate sizes from 200mm to 1200mm. Designed for fast, straightforward installation, the one-piece mechanism requires no cropping or extensions. Compatible with standard and shallow Eurogrooves, it utilises MACO's existing mushroom striker range and features a ±1mm compression adjustment for seasonal settings. Finished in MACO’s Silverlook-Evo, the lock delivers outstanding corrosion resistance together with self-healing, self-lubricating protection for smooth, reliable long-term operation. Technical Information 20mm Backset: 120 × 12 × 27.2mm lockcase 22mm Backset: 120 × 12 × 29.2mm lockcase Cam Height: 7.7mm mushroom cams Locking Mechanism: Reverse-action bidirectional twin cams Cam Adjustment: ±1mm seasonal compression adjustment Faceplate Width: 16mm Eurogroove Compatibility: Standard 12mm and shallow profiles Gearbox Type: Reverse-action inline espagnolette Materials: Mild steel (DIN 1624), machine steel (DIN 1651), Zamac Z410 (DIN 1743), sintered steel D30 (DIN 30910) Finish: Silverlook-Evo self-healing, self-lubricating coating; EN 1670 Grade 5 (480 hours salt spray) Certification: PAS 24 compliant security system Handle Compatibility: 7mm square spindle, 43mm fixing centres Guarantee: MACO Secure Plus 10-year guarantee with up to £1,000 insurance excess cover