Description & Specifications
Built for aprons and conveyors that take a beating, Nitro 667XH pintle chain with AS attachments every 7th link gives you a ready-to-install solution for mounting crossbars, slats, flights, or paddles. Each AS attachment is a tab welded to one side of the link with a single mounting hole, spaced for consistent, evenly distributed material engagement.
The base chain is premium Nitro 667XH: precision heat treated, shot peened, and pre-loaded at the factory, with thru-hardened structural-grade steel pins that stand up to abrasive, high-shock environments.
15.75" attachment centers
One AS tab every 7th link (7 × 2.250" pitch), welded on one side with a single hole
Key features
- AS attachment every 7th link: Single-hole tab welded on one side, spaced 15.75" apart for bolt-on crossbars, slats, or flights.
- Quad staked pins: Increased pin retention helps the chain withstand repetitive shock loads better than dual staked designs.
- Open barrel design: Keeps manure, feed, and debris from packing into the chain or the sprocket root.
- Heat treated and shot peened: Optimized hardness for wear resistance, plus a compressive stress layer that fights fatigue failure.
- Factory pre-loaded: Seats the chain joints to eliminate initial elongation, so the chain runs true from day one.

667XH AS Attachment Chain Dimensions
- Pitch (P):2.250"
- Inner Width (b1):1.079"
- Overall Width (L):2.283"
- Pin Diameter (d2):0.469"
- Link Plate Height (h2):1.075"
- Link Plate Thickness (T):0.224"
- Plate Thickness (T3): 0.375"
- Tab Width (G):1.250"
- Centerline To Outer Attachment Width (W):2.750"
- Width To Center Hole (F):2.031"
- Attachment Hole Diameter (d4):0.388"
- Attachment Spacing (S):15.750"
- Average Tensile Strength:33,800 lbs
- Max Working Load:5,200 lbs
- No. Of Pitches/Links Per 10 Feet:53
- No. Of Connecting Pins Included:1
- Chain Material:Carbon/Alloy Steel
All dimensions listed are nominal values.

