Bolthold SP58-58S Asphalt Anchor – 304 Stainless Steel

The Bolthold SP58-58S asphalt anchor is a heavy-duty anchoring solution designed for demanding asphalt applications where maximum corrosion resistance is required. This 10″ asphalt anchor is ideal for securing tents, speed bumps, curbs, and similar fixtures directly into asphalt surfaces. Manufactured from 304 stainless steel, it offers excellent resistance to corrosion, making it well suited for coastal, marine, and saltwater-adjacent environments.

Load anchors to no more than 80% of rated pull strength when the structure is self-supporting. If the structure applies a static pull force on the anchors, limit loading to 20% of the rated pull strength.

SP58-58S Asphalt Anchor – Corrosion-Resistant Flush-Mount Anchoring

Engineered for strength, durability, and clean removability, the SP58-58S anchor installs flush with the asphalt surface and features a large top header that prevents pull-through during tightening. When installed with the proper grout, it delivers reliable holding power while allowing attached objects to be removed without leaving surface protrusions.

Key Features

• 304 Stainless Steel Construction: Provides excellent corrosion resistance for coastal and outdoor environments.
• Flush-Mount Design: Installs level with the asphalt surface for a clean, trip-free finish.
• Large Top Header: Prevents anchors from dropping below the surface or pulling into the mounting plate.
• Heavy-Duty Asphalt Anchor: Designed for high-load, surface-mounted asphalt applications.

Common Applications

• Tents and temporary structures
• Speed bumps and traffic calming devices
• Curbs and parking lot fixtures
• Event infrastructure and site furnishings
• Removable asphalt-mounted installations

Installation Tips

• Drill the required diameter hole to the specified depth based on anchor requirements.
• Use only approved EPX2 or EPX3 grout to properly secure the anchor.
• Allow grout to fully cure before applying any load.

Required Grout:

Listed below are the approximate amounts of grout required to install one six-pack of SP58-58S asphalt anchors.

• Two six-packs of EPX2 grout. (12 oz. bags) – Each Bag Of EPX2 grout installs (0.5) SP58-58S Anchor.
• One EPX2 tub of grout. (10 lb. tub) – Each Tub Of EPX2 grout installs (10) SP58-58S Anchors.
• Six EPX3 cartridges of grout. (10 oz. tube) – Each Tube Of EPX3 grout installs (1) SP58-58S Anchor.