Sargent 01-1121 #3-48 x 5/16" ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$47.88
$44.66
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Sargent 01-1121 #3-48 x 5/16" Flat Head Machine Screw Pack of 100 for Commercial Door Hardware

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Model: 01-1121

In Stock (leaves warehouse same day if ordered before 3pm ET)

$47.88
$44.66
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Sargent 01-1121 #3-48 x 5/16" Flat Head Machine Screw Pack of 100 for Commercial Door Hardware

The Sargent 01-1121 is a commercial-grade #3-48 x 5/16" flat head machine screw sold in a convenient pack of 100, engineered specifically as a genuine Sargent lock part for use with Sargent door hardware installations and service applications. Designed for professional door hardware technicians, locksmiths, and facilities maintenance teams, this screw pack ensures you always have the correct fastener on hand for Sargent mechanical lock assemblies. The #3-48 thread specification and 5/16" length make this a precise replacement or installation accessory for compatible Sargent hardware components.

Key Features

  • Precise Thread Specification: #3-48 thread form ensures correct fit and engagement with compatible Sargent lock components and door hardware assemblies.
  • Exact Length: 5/16" screw length engineered to meet the dimensional requirements of Sargent mechanical lock installations and service repairs.
  • Flat Head Profile: Flat head (fl. hd.) machine screw design provides a flush, low-profile seating surface suitable for recessed mounting applications in door hardware.
  • Value Pack Quantity: Sold in packs of 100 screws, providing a cost-effective supply for high-volume installation projects, service calls, and facilities maintenance programs.
  • Genuine Sargent Lock Part: Sourced as an authentic Sargent replacement part, ensuring full compatibility and performance consistency with Sargent mechanical lock products.
  • Commercial-Grade Application: Classified as a commercial installation accessory, suited for professional-grade door hardware environments where precision fasteners are required.
  • Parts and Accessories Category: Designed for use within the Sargent parts and accessories ecosystem, supporting the installation and maintenance of Sargent mechanical lock hardware.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Screw Pack
  • Parts and Accessories Type: Installation Accessories
  • Commercial/Residential: Commercial
  • Product Model: 01-1121
  • Features: Sargent Lock Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Sargent 01-1121?

Sargent door hardware parts deliver professional-grade reliability as genuine manufacturer components, ensuring precise fit and full compatibility with Sargent mechanical lock systems. Engineered for demanding commercial applications, the 01-1121 screw pack provides facilities professionals and locksmiths with the exact fasteners needed to maintain and install Sargent hardware to manufacturer specifications. With 100 screws per pack, this product supports efficient, high-volume service operations without compromise on quality or compatibility.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Screw Pack
Parts and Accessories Type:
Installation Accessories
Commercial/Residential:
Commercial
Product Model:
01-1121
Features:
Sargent Lock Parts

Sargent 01-1121 – Frequently Asked Questions

1) What size screw is the Sargent 01-1121?
The Sargent 01-1121 is a #3-48 thread, 5/16 inch long flat head machine screw, sold 100 to a pack. The #3-48 is a fine machine thread, not a wood or sheet metal screw, so it threads into a tapped hole in the hardware rather than biting into the door.
2) I have Corbin Russwin ML2000 locks, not Sargent. Can I use the 01-1121 screws?
No. The 01-1121 is a Sargent part sized for Sargent hardware. For ML2000 mortise locks, Corbin Russwin has its own fasteners: the 425F86-8 flat screw in 8-32 x 3/8 inch, the 206F57-8 strike combo screw, and escutcheon screw packs, 429F31 for the N escutcheon and 433F77 for M and P escutcheons.
3) Is the Corbin Russwin 425F86-8 flat screw a substitute for the Sargent 01-1121 machine screw?
No. The Sargent 01-1121 is a #3-48 x 5/16 inch flat head machine screw, while the Corbin Russwin 425F86-8 is an 8-32 x 3/8 inch flat screw for the ML2000 mortise lock. Different thread size, different length, and different lock platform - the 8-32 will not start in a tapped #3-48 hole. Use the 01-1121 where Sargent hardware calls for a #3-48 fastener.
4) I am servicing Corbin Russwin ML2000 escutcheons - what screw pack should I order instead of the Sargent 01-1121?
For ML2000 escutcheon work, order the Corbin Russwin part matched to the trim: the 429F31 screw packet covers the N escutcheon, and the 433F77 screw pack covers the M and P escutcheons. The Sargent 01-1121 is a genuine Sargent part intended for Sargent mechanical lock assemblies, so it is the wrong family for an ML2000 escutcheon rebuild.
5) Will a Sargent 01-1121 screw sit flush, or will the head stand proud?
It is a flat head (fl. hd.) screw, so it seats flush in a countersunk or recessed hole. If the hole in your part has a flat-bottomed counterbore rather than a countersink, a flat head will not sit right and you want a different head style.
6) Is the Sargent 01-1121 a genuine Sargent part or an aftermarket screw?
It is a genuine Sargent lock part, supplied for Sargent mechanical lock assemblies and door hardware service. A generic #3-48 x 5/16 from a fastener bin will usually thread, but head diameter and countersink angle are what decide whether it seats flush in Sargent hardware.
7) What is the difference between the Sargent 01-1121 and a Corbin Russwin ML2000 escutcheon screw pack?
Different brands and different jobs. The 01-1121 is a single size of Sargent fastener, #3-48 x 5/16 flat head, 100 per pack. The Corbin Russwin 429F31 and 433F77 are screw packets matched to specific ML2000 escutcheons, N on the 429F31 and M and P on the 433F77. Buy by the lock brand you are servicing.
8) What is the difference between buying the Sargent 01-1121 and a trim-specific screw packet like the Corbin Russwin 433F77?
The Sargent 01-1121 is a single-size bulk fastener - 100 identical #3-48 x 5/16 inch flat head machine screws - so you stock one size and pull from it across service calls. The Corbin Russwin 433F77 is a screw pack assembled for the ML2000 M and P escutcheons, meaning it is bought per job rather than as bench stock. If you maintain Sargent hardware and want a shop supply of the #3-48 size, the 01-1121 is the bulk route.
9) Can I use the Sargent 01-1121 in place of a strike screw like the Corbin Russwin 206F57-8?
No. The Corbin Russwin 206F57-8 is a strike combo screw for the ML2000, sized to anchor a strike into the frame. The Sargent 01-1121 is a #3-48 x 5/16 inch flat head machine screw - a small, short fastener for Sargent lock component assembly, not a frame-anchoring strike screw. Order the strike screw for strike work and keep the 01-1121 for the Sargent assemblies that specify it.
10) Is this screw pack meant for commercial door hardware or residential locks?
Commercial. The 01-1121 is classified as a commercial installation accessory within Sargent's parts line, aimed at locksmiths, service techs and facilities maintenance keeping Sargent mechanical locks running in offices, schools, hospitals and multi-tenant buildings.
11) Why buy 100 screws when I only need a few?
The 01-1121 is only sold as a 100-count pack, which is how Sargent supplies this fastener. For a shop truck or an in-house maintenance crib that services Sargent locks regularly, a bulk count of a small screw that is easy to drop and lose is the practical way to stock it.
How fast can I get the Sargent 01-1121 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sargent 01-1121 come with a warranty?
Absolutely. The Sargent 01-1121 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sargent 01-1121?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Sargent 01-1121 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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