Hex Bolt ASTM A 490 A490 Black 7/8 x in carbon steel, black, A490, inch thread. 6 sizes available; sold per unit.
| SKU | Size | Price | Status | Qty | |
|---|---|---|---|---|---|
| VT-8442 | 2 x 1/4 | $ 5.496 | In stock | ||
| VT-8443 | 2 x 1/2 | $ 6.042 | In stock | ||
| VT-8444 | 2 x 3/4 | $ 6.114 | In stock | ||
| VT-8446 | 3 x 1/4 | $ 7.068 | In stock | ||
| VT-8447 | 3 x 1/2 | $ 7.992 | In stock | ||
| VT-8448 | 3 x 3/4 | $ 8.564 | In stock |
Prices per unit, before VAT. Availability is confirmed in the formal quote.
| Material | acero al carbono |
| Finish | negro |
| Grade / Standard | A490 |
| Thread system | pulgadas |
| Family | Hex bolts |
ASTM A490 black structural bolt 7/8 is a hex head bolt for larger-diameter bolted structural joints with load and assembly control in steel. At TECTUL it is quoted per unit and by actual available size, cross-checking diameter, length, pitch, material, finish and standard before confirming price. This reference is differentiated by 7/8 diameter in black A490; it differs from A490 3/4 and 1 by hole size and tightening set. The material reported for the lot is carbon steel with black finish. For class 8.8, 10.9 and SAE grades, selection must respect the requested mechanical property; for DIN 933, DIN 931, DIN 960 or DIN 961, full, partial, standard or fine thread geometry is validated according to the drawing. For ASTM A325, A490 or A394, the project standard defines bolt, nut, washer and assembly. We do not publish single torque or load values because they depend on lubrication, coating, grip length, thread condition and engineering criteria.
| Reported actual size | Family diameter | Pitch or thread | Sale |
|---|---|---|---|
| 2 x 1/2 | 7/8" | inch thread | unit |
| 2 x 1/4 | 7/8" | inch thread | unit |
| 2 x 3/4 | 7/8" | inch thread | unit |
| 3 x 1/2 | 7/8" | inch thread | unit |
| 3 x 1/4 | 7/8" | inch thread | unit |
| 3 x 3/4 | 7/8" | inch thread | unit |
We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp for this astm a490 black structural bolt 7/8, indicating size, quantity, pitch, finish and whether you need a compatible nut or washer.
The price depends on size, length, quantity, finish, standard and availability. TECTUL quotes per unit with the exact reference requested.
The 7/8 has a larger nominal diameter than the 3/4. Although they share standard and finish, they do not use the same hole or nut and washer set.
It is installed with nuts and washers compatible with the project standard, controlling alignment, grip length and the tightening method defined by engineering.
Send diameter, length, pitch or thread, quantity, material, finish, required standard and a photo or drawing if you are replacing an existing reference.
The sale is handled per bolt unit unless the quotation specifies a set. Indicate whether you need a nut, flat washer, lock washer or structural set.
Yes. TECTUL dispatches to Bogotá, Medellín, Cali, Barranquilla and other cities in Colombia depending on availability and carrier.
Updated: July 22, 2026
