Sargent 28-2031 Through Bolt Set for 3727 Vertical Rod Exit Devices

The Sargent 28-2031 is a factory-specified through bolt package designed for use with the Sargent 3727 Surface Vertical Rod (SVR) exit device. The set includes 14 through bolts and is engineered for 1-3/4" door thickness — the standard minimum thickness for commercial exit device installations per ANSI/BHMA guidelines. Each package ships with a manufacturer instruction sheet tailored to the specific device type, ensuring correct installation sequence and fastener placement.

Through bolts are a critical component for secure exit device mounting, particularly on composite, hollow metal, and wood doors where standard machine or wood screws may not provide adequate pull-through resistance. On fire-rated assemblies, through-bolting is frequently required by UL listing conditions to maintain door integrity during a fire event.

Key Benefits

• Complete 14-bolt package — everything needed for a full 3727 SVR through-bolt installation in a single SKU
• Designed for 1-3/4" door thickness — the commercial standard; confirm door thickness before ordering
• Includes installation instruction sheet — device-specific guidance packaged with each set
• Two finish options available — EN (Aluminum Enamel) and EB (Bronze Enamel) to coordinate with door and device finish
• OEM-specified fasteners — engineered to Sargent's tolerances for the 3727 exit device series

Typical Applications

• New installation or replacement fastener set for Sargent 3727 surface vertical rod panic hardware
• Commercial hollow metal, wood, or composite doors requiring through-bolt mounting
• Fire-rated door assemblies where through-bolt fastening is required by UL listing or local AHJ
• Retrofit or re-installation of existing 3727 SVR exit devices
• Schools, commercial office buildings, healthcare facilities, and institutional egress doors

Compatibility Note

The 28-2031 through bolt set is specified for use with the Sargent 3727 exit device. Always verify the exact exit device model number before ordering fastener packages, as bolt length and quantity requirements vary by device series and door thickness. For doors thicker than 1-3/4", a different bolt package or the Sargent 31- option (extended through bolt) may be required — consult the device catalog or your hardware consultant.

Technical Details