Specialinsert M1 T38 Rectangular Bonding Stud, M6 x 16mm, Zinc Plated Steel

Description

The Specialinsert M1 T38 bonding stud combines a 38mm x 15mm rectangular zinc plated steel baseplate with a 16mm stud carrying an M6 thread. The perforated rectangular base gives adhesive a mechanical key across a wide footprint, while the threaded post accepts a matching M6 nut, bolt, or bracket once the bond has cured. No drilling, tapping, or welding is required to place a mounting point on sheet metal, composite panel, or molded plastic, and the low profile base keeps the finished attachment point flush against the surface it is bonded to.

Where the M1 T38 Bonding Stud Is Used

This M1 T38 configuration turns up wherever a fabricator needs a threaded attachment point on a finished surface without breaking through to the back side. Signage panels, cabinet and enclosure doors, marine hull liners, RV and trailer skins, and HVAC duct covers all use the rectangular T38 base because the 38mm x 15mm footprint fits narrow rails and channel edges where a round base would overhang. Electrical and lighting fixture mounts, bracket standoffs, and access panel latches also rely on the M6 stud to carry a nut or knob without a visible fastener head on the outward face. The rectangular shape also resists rotation under torque better than a round base of the same area, which matters when a technician is tightening a nut onto the stud after the bond has cured.

How the M1 T38 Bonding Stud Holds Up

Zinc plating on the steel body resists surface corrosion and gives the baseplate and stud a consistent finish for painted or coated assemblies. Because the bonding stud spreads load across the full 38mm x 15mm plate rather than concentrating it at a single point, the joint resists peel and shear better than a comparable self-tapping screw driven into thin sheet stock. The adhesive layer can help isolate dissimilar metal surfaces, but corrosion control still depends on the adhesive, surface preparation, environment, and joint design. Surface prep matters more than adhesive choice alone: a light abrasion and solvent wipe on both the panel and the baseplate perforations gives the adhesive a clean, keyed surface to grip before the stud is set and clamped through cure. Specialinsert, the Italian manufacturer behind the M1 stud line, builds this base and stud combination as part of its Master-Plate bonding fastener range, engineered for fabricators who need a repeatable, drill-free mounting point at production volume. Specialinsert designs the M1 Series specifically for structural adhesive bonding, not for embedding in wet molding compounds.

Specifications

Order the M1 T38 stud individually by the SKU above, or pair it with a two-part structural adhesive sized to the 38mm x 15mm footprint for a full bonding kit. Browse the complete lineup of glue-on studs and pads in the bonding fasteners category to match base shape and thread size to the panel you are mounting to. For manufacturer background on the M1 Series and other Master-Plate configurations, see Specialinsert.

Need Help?

Need help matching baseplate size or thread pitch to your panel? Call (800) 220-1966 or email [email protected].