Concrete anchors square bend hook bolt j bolts
Custom J-Bolt Manufacturing & Global Supply Solutions
At T&Y Hardware, we have been deeply engaged in the fastener manufacturing industry for over 23 years. As a leading heavy-duty J bolt manufacturer and supplier, we specialize in delivering precision-engineered J-bolts, J-hook screws, and custom foundation anchors. From small J bolts for light structural fixtures to extra-long J bolts designed for deep concrete foundations, we provide dependable factory-direct solutions for distributors, engineers, and contractors worldwide.
- 23+ Years of Experience & Certified Quality: Trusted globally across North America, Europe, and Asia. As a premier J bolt supplier, we enforce strict quality control, precise thread tolerances, and full material traceability for every batch.
- Custom Fabrication & Full Assembly Options: We manufacture standard, square bend J bolts, and custom hook screws to your exact drawings, while supplying pre-assembled sets featuring J bolts with nuts and washers (EPDM/flat/spring) to save on-site installation time.
- Factory-Direct Supply & Reliable Capacity: Leveraging robust daily production capacity and direct raw material sourcing, we offer competitive bulk pricing, flexible MOQs, and reliable lead times for large-scale engineering projects.
| Specification Type | Available & Popular Sizes (Sorted Small to Large) |
| Metric J-Bolts (Diameter) | M6, M8, M10, M12, M16 (16mm), M20 (20mm) — Custom metric sizes up to M64 available |
| Imperial J-Bolts (Diameter) | 1/4″ (including 1/4-20), 5/16″, 3/8″, 1/2″, 5/8″, 3/4″, 1″ — Custom imperial sizes available |
| Popular Lengths | 8 inch, 10 inch — Overall length range from 4″ to 36″ (100mm – 915mm) available |
| Thread Type | Metric, ISO, UNC, UNF (Coarse Thread, Fine Thread, Half Thread options) |
- Our certificates
- Applications & Structural Uses
- j bolt Material
- J bolt Strength grade
- J bolt surface treatment
Application Category | Key Features & Engineering Uses |
J bolts for concrete | Heavy-duty anchor placement for concrete slabs, foundations, structural columns, and machinery bases. Built with deep-embedding hooked ends to provide maximum pull-out resistance. |
J bolts for roofing (and roofing sheets) | Specialized structural fasteners designed to secure corrugated metal roofing sheets, purlins, and steel/timber trusses against wind uplift. |
J bolts for gates | Weather-resistant hardware engineered for securing heavy gate hinges, outdoor fence posts, and latching systems in exposed environments. |
J bolts for grating | Precision-bent hook bolts designed to clamp steel grating securely onto industrial walkways, platforms, and trench covers, resisting vibration loosening. |
Ladder rack J bolts | High-strength mounting fasteners designed to securely attach ladder racks, utility frames, and equipment boxes onto commercial trucks and service vehicles. |
Steel & Carbon Steel: Q235, A36, A572, C1045, 40Cr. (High-strength steel J bolts ideal for standard concrete foundations).
Stainless Steel: 304, 304L, 316, 316L, 410, 2205 Duplex. (Premium stainless steel J bolts perfect for highly corrosive or marine environments).
High-Performance Alloys: Hastelloy, Inconel (600, 625), Monel 400, Titanium.
Non-Ferrous Metals: Brass (C36000), Red Copper, Aluminum.
4.8 grade、6.8 grade、 8.8 grade、10.9 grade、 12.9 grade
A2-70、A2-80、A4-70、A4-80
Plain, Galvanized, HDG, Nickel Plated, Copper plating, black oxidation, passivation, polishing， power coated and so on
Insert the hooked end directly into wet concrete while pouring, leaving the upper threaded section exposed. Use a spirit level to ensure the bolt is perfectly vertical (90°). Once the concrete cures, the embedded hook locks permanently into place to secure structural bases.
Large hook type J anchor bolts can be used for concrete. When the cement is not yet dry, insert the J bolt head downwards to ensure that the height of the concrete covers the J head, and the threaded end must be completely exposed.
Then use a level to adjust the angle between the bolt and the ground to exactly 90 degrees. After the cement is dry, it can be used normally.
J bolts are mainly used in construction, infrastructure, mechanical equipment, and other fields that require fixation and support.
Our mainly customers are from Eruope, South And North America , Southeast Asia
We have stable production line and Senior Processing workers ,to assure qualified product , while our price is a little higher than indian suppliers
if you have quality requirement ,we suggest you try us ,if you only focusing on price , Indian suppliers are better choices
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