J-1605 Sanitary Round Head Square Neck Bolt
This is a round head square neck sanitary bolt specifically designed for food, beverage, pharmaceutical, packaging, and other sanitary equipment. The product features a smooth, low-dead-angle dome head design, which eliminates the common internal hex, cross slot, or external hex drive structures found in regular bolts on the front, reducing the risk of moisture, dirt, and product residue accumulation in grooves, sharp corners, and tool holes. This makes it more suitable for areas of equipment that require frequent cleaning and rinsing. A square anti-rotation neck is designed below the bolt head. During installation, the square neck fits into the pre-made square hole in the equipment, preventing the bolt from rotating, allowing the installer to simply tighten the nut from the back of the equipment to secure it. This structure is particularly suitable for sanitary areas where tool drive slots are undesirable on the front, while still requiring reliable fastening. A blue sanitary sealing ring is configured between the round head and the equipment surface to seal the connection area between the bolt head and the mounting surface, reducing the entry of cleaning water, dirt, and contaminants into the installation gap, while avoiding the formation of metal-to-metal contact interfaces that are unfavorable for cleaning. It is recommended that the sanitary version be made of SUS316 or SUS316L stainless steel, with fine polishing on exposed surfaces. For food and pharmaceutical equipment, the surface roughness can be controlled to Ra≤0.8 μm according to project requirements, enhancing the cleanability and corrosion resistance of the surface.
- Protection Level: IP69K
- Seal Material: HNBR Compliant with FDA Regulations
- Material: SUS316L
- Surface Treatment: Mirror Polishing
- Compliance Standards: Follow sanitary design guidelines such as 3-A, EHEDG, EN 1672-2, and ISO 14159. Use food-safe seals that meet FDA standards.
- Application Scenarios: Food Processing Equipment, Beverage Filling Equipment, Dairy Equipment, Meat Processing Machinery, Pharmaceutical Equipment, Biopharmaceutical Equipment, Packaging Machinery, Conveying Equipment, Sanitary Control Cabinets, Stainless Steel Equipment Covers, Equipment Protection Plates, Cleanroom Equipment, Filtration Equipment, Mixing Equipment, and Machinery that Requires Frequent Cleaning.
Detailed Specifications
| Image | Model | Square Key Specification | Thread Standard | Seal Material | Material | Download |
|---|---|---|---|---|---|---|
| J-1600-8M-1-L-A2 | 5mm | M5*0.8 | Blue HNBR | SUS316 | ||
| J-1600-8F-1-L-A2 | 5mm | 10-32UNF | Blue HNBR | SUS316 | ||
| J-1600-8M1-1-L-A2 | 6mm | M6*1 | Blue HNBR | SUS316 | ||
| J-1600-8F1-1-L-A2 | 6mm | 1/4"-28UNF | Blue HNBR | SUS316 | ||
| J-1600-8M2-1-L-A2 | 8mm | M8*1.25 | Blue HNBR | SUS316 | ||
| J-1600-8F2-1-L-A2 | 8mm | 5/16"-18UNC | Blue HNBR | SUS316 | ||
| J-1600-10M-1-L-A2 | 10mm | M10*1.5 | Blue HNBR | SUS316 | ||
| J-1600-10F-1-L-A2 | 10mm | 3/8"-16UNC | Blue HNBR | SUS316 | ||
| J-1600-13M-1-L-A2 | 12mm | M12*1.75 | Blue HNBR | SUS316 | ||
| J-1600-13F-1-L-A2 | 12mm | 1/2"-13UNC | Blue HNBR | SUS316 | ||
| J-1600-16M-1-L-A2 | 16mm | M16*2 | Blue HNBR | SUS316 | ||
| J-1600-16F-1-L-A2 | 16mm | 5/8"-11UNC | Blue HNBR | SUS316 | ||
| J-1600-18M-1-L-A2 | 20mm | M20*2.5 | Blue HNBR | SUS316 | ||
| J-1600-18F-1-L-A2 | 20mm | 3/4"-10UNC | Blue HNBR | SUS316 |
FAQ
Can you send samples?
Yes, we can provide a few free samples for the customer, but we hope that the shipping cost can be covered by your side.
Where is this bolt primarily installed?
It is particularly suitable for the exterior of equipment that belongs to sanitary cleaning areas, with the nut installed on the back or internal structure of the equipment, such as food machinery covers, protective panels, stainless steel frames, hygienic equipment panels, and access covers.
What is the minimum order quantity?
The general minimum order quantity is 200 PCS, but if stock is sufficient, flexible supply can be provided according to actual demand, with no minimum order quantity restrictions.
Why is a square designed under the bolt head?
This square structure is called a square neck. During installation, the square neck fits into the square hole on the device, preventing the bolt from rotating. Therefore, when tightening the nut from the back, the bolt head on the front will not rotate.
How Do Sanitary Fasteners Improve Equipment Cleanliness?
Hygienic fasteners reduce the accumulation of dust, liquids, and contaminants at connection points through smooth surface treatment, sealed structural design, and optimized profile design. ForndLock products are made from mirror-polished SUS316L material and equipped with HNBR sealing components, enhancing equipment cleaning efficiency and long-term sealing reliability.
Does ForndLock support customizing sanitary fasteners according to drawings or equipment requirements?
Support. ForndLock can provide customized sanitary fastening solutions based on customer drawings, installation dimensions, thread specifications, material requirements, surface treatments, and sealing needs. For equipment manufacturers and engineering projects, comprehensive services from design support to mass production are available.
Can ForndLock provide sanitary-grade fastener samples for testing?
Yes. ForndLock supports providing samples for installation testing, material confirmation, and project evaluation. Customers can verify product dimensions, sealing performance, surface treatment effects, and compatibility with equipment structures before bulk purchasing, reducing project procurement risks.
