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Pos-I-Tie® Keybolt (75KB)

Part Number: 75KB

The Pos-I-Tie. KeyBolt is designed for easy and effective stone anchor attachment where sheathing/insulation is installed over the backup wall. The KeyBolt system penetrates the sheathing, drills into the backup, and seals the hole to avoid water/air penetration. All compression loads are transferred to the backup through the KeyBolt without damaging the sheathing. When ordering, specify the type of stone anchor with the “KeyBolt Slot”.

KeyBolt Barrel Components

  1. Pos-I-Tie. KeyBolt barrel (including 2 hex nuts and EPDM washer
  2. Barrel screw (self-drilling screw, concrete screw, or structural steel screw)
  3. Anchor with KeyBolt Slot


Individual Submittal Sheets are available for the following KeyBolt Stone Anchors:
#275-UKB, #275-ZKB, #274-KB, #276-KB, #278-KB


NOTE: The KeyBolt System requires a minimum 1-1/2” airspace.

Features and Benefits

Ideal solution for stone veneer anchorage over sheathing and insulation

Completely seals the hole blocking ALL air and moisture penetration

Offers speedy cost-saving installation

Allows for use of 4' x 8' insulation sheets

Materials/Finishes

#75-KB Pos-I-Tie® KeyBolt Stone Veneer Anchoring System

The Pos-I-Tie® KeyBolt system is designed for easy and effective stone anchor attachment where sheathing/insulation is installed over the backup wall. It is essential that the lateral loads be transferred between the stone and backup without compromising the sheathing.

  • This is a solid stainless steel anchoring system for stone veneers.
  • There are 2 pieces: A KeyBolt with double nuts and an EPDM washer along with a custom made stone anchor.
  • For use with Steel Stud, CMU, Concrete, ICF, Structural Steel and Wood backups.

Individual Submittal Sheets are available for the following KeyBolt Stone Anchors:

#275-UKB#275-ZKB#274-KB#276-KB#278-KB


NOTE: The KeyBolt System requires a minimum 1-1/2” airspace.

Select back up for proper screw type
Sheathing Thickness Barrel Screw Lengths
5/8 “-- 1-1/4” 2”
1-1/4” -- 2” 2-5/8”
2” -- 2-1/2” 3-1/8”
2” -- 2-1/2” 3-5/8”
3” -- 3-1/2” 4-1/8”
3-1/2” -- 4” 4-5/8”
4” -- 4-1/2” 5-1/8”
4-1/2” -- 5” 5-5/8”

Material Specifications

Stainless Steel: Sheet metal anchors and ties: ASTM A 167, ASTM A 666, ASTM A 240/A240M AISI Type 304.

Wire ties and anchors: ASTM A 580 AISI Type 304 (AISI Type 316 available upon request)

Compatible with all back-up walls

Self-Drilling Screw

Used for: steel stud 18 ga – 14 ga

Concrete/CMU Screw

Used for: concrete, CMU, wood, brick, ICF

Structural Screw

Used for: structural steel

Barrel Lengths

Pos-I-Tie Keybolt System Barrel Screw lengths

Pos-I-Tie® KeyBolt System

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