Storefront Hook-Bolt Deadlock Adams Rite MS1850S-450 – 1-1/2-Inch Backset

Special order. Stock is confirmed after checkout. Email customerservice@emergencydoorandglassrepair.com if you are unsure this is the correct part. Orders over $5,000 can be paid by ACH; other orders use card checkout.

Adams Rite MS1850S series MS deadlock configured as MS1850S-450: hookbolt, 1-1/2-inch backset. Finish must be confirmed at order (retailer listings use 313 dark bronze). Cylinder and thumbturn are sold separately.

Manufacturer identification

• Manufacturer: Adams Rite (ASSA ABLOY)
• Official manufacturer part number: MS1850S-450 (series MS1850S; confirm full finish/faceplate code before purchase)
• Product category: Storefront hook-bolt deadlock
• Unit: Each

Verified specifications

• Door type: Single-leaf narrow-stile door (Adams Rite series page)
• Backset for this SKU: 1-1/2 in. Series also offers 7/8, 31/32, and 1-1/8 in — those are different part numbers.
• Case: 1 in × 6 in
• Faceplate: 1 in × 6-7/8 in
• Bolt: 8-ply laminated stainless, about 3 in (series page)
• Door width / weight / spindle / hold-open / opening degree: not applicable
• Handing: standard MS1850S is typically non-handed; schoolhouse versions are handed. Confirm the exact catalog code.
• Finish: confirm 313 / 335 / 628 before order

Included components

• Deadlock body with configured faceplate (confirm pack contents on the packed part)

Optional / sold separately

• 4036 mortise cylinder
• 4066 thumbturn
• Trim plate, box strike, armored strike
• Los Angeles-area installation — request a quote; not included

Installation requirements

• Confirm backset, faceplate shape (flat vs radius vs bevel), strike, and cylinder cam.

Warranty terms

Not stated on the Adams Rite series page reviewed August 16, 2026.

Return restrictions

Keyed or installed locks are likely non-returnable.

Shipping

• Series ship weight listed elsewhere as about 1.5 lb; not independently verified for this exact code
• Shipping is calculated separately. This listing does not include free shipping.

Compatibility warning

Commercial door hardware is application-specific. Verify manufacturer, model, dimensions, handing, spindle, door type, and existing installation before ordering. If uncertain, text clear photos and measurements to 310-933-2600. Identification assistance does not replace field verification.

Need help?

• Text photos for identification: 310-933-2600
• Email installation quotes and order questions to customerservice@emergencydoorandglassrepair.com. Replies are by email only.