Titen HD 1/4 x 1-7/8 hex-washer screw anchor, model THDB25178H. Carbon steel, zinc plated for dry interiors. Box of 100.
Titen HD is a high-strength carbon steel screw anchor for cracked and uncracked concrete and uncracked masonry. This 1/4 x 1-7/8 hex-washer head, model THDB25178H, ships a 100-count box and is zinc plated for dry interior work. Drill a 1/4 in hole, overdrill about 1/8 in for tap dust, and drive until the washer seats. It is the only 1/4 in Titen HD live here, so other diameters are listed separately.
| Property | Value |
|---|---|
| Manufacturer | Simpson Strong-Tie |
| Product | Titen HD |
| Model | THDB25178H |
| Size | 1/4 x 1-7/8 |
| Head | Hex washer |
| Coating | Zinc plated, dry interior |
| Box qty | 100 |
| Drill bit | 1/4 in |
| Wrench | 3/8 in |
| Overdrill | 1/8 in |
| Thread length | 1 1/2 in |
| Nominal embed | 1 5/8 or 2 1/2 in |
What is this?
A 1/4 x 1-7/8 Titen HD hex-washer screw anchor, model THDB25178H, in a 100-count box. Zinc plated for dry interior work.
How do I install it?
Drill a 1/4 in ANSI hole, overdrill about 1/8 in, blow it clean (overhead can stay dusty), then drive until the washer seats.
Is the box 50 or 100?
Current C-A-2023 lists a 100-count box for THDB25178H. Magento short copy had said Case 50.
Are other 1/4 in lengths live?
No. This is the only 1/4 in Titen HD on the site. Other diameters are listed separately.
Who makes it?
Simpson Strong-Tie.
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