Hygienic Design slightly domed Hexagon head Bolt——VTS29
Technical Drawing & Dimensions
| Part Series | d3 | L | d1 | d2 | h | SW | ||||||||||||
| VTS29 | M4 | 5 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 9.85 | 10.5 | 7.152 | 7 | ||||
| VTS29 | M5 | 5 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 10.85 | 11.5 | 7.63 | 8 |
| VTS29 | M6 | 6 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 12.85 | 13.5 | 8.14 | 10 | |||
| VTS29 | M8 | 8 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 70 | 75 | 15.85 | 16.4 | 9.12 | 13 |
| VTS29 | M10 | 10 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 18.85 | 19.2 | 9.5 | 16 | |
| VTS29 | M12 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 21 | 22 | 10.5 | 18 |
| VTS29 | M14 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 25 | 24.9 | 11.7 | 21 |
| VTS29 | M16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 28 | 27.8 | 12.7 | 24 |
Low-Profile Applications
VTS29 uses a slightly domed, low-profile head to reduce projection above the mounting surface. It is suited to compact assemblies where head height and surrounding clearance matter, including fastening points on stainless-steel gearboxes and motors used in food and pharmaceutical equipment.
Technical Features & Benefits
Material: AISI 316L stainless steel / EN 1.4404 for superior chemical and corrosion resistance.
Surface Finish: Precision CNC machined to Ra < 0.8 μm, ensuring effortless cleaning during washdowns.
Traceability: Full Material Test Report (MTR) and raw material certificates provided with every batch.
Technical Data
Bolt body: AISI 316L stainless steel / EN 1.4404
Certification: 3-A certified
Surface finish: Matte or polished, Ra < 0.8 µm
HNBR sealing ring: Blue, FDA-compliant material, 85 ±5 Shore A, -25 °C to +150 °C
EPDM sealing ring: Blue, FDA-compliant material, 85 ±5 Shore A, -40 °C to +120 °C
FDA compliance applies to the sealing-ring material, not to the complete bolt or installed assembly.
Frequently Asked Questions
What is the difference between HNBR and EPDM seals?
Based on our market observations, HNBR seals are common in food-processing equipment and EPDM seals in pharmaceutical equipment. For other applications, contact us to confirm the suitable material.
Metal-to-Metal and Seal-Free Options
Through our discussions with pharmaceutical equipment manufacturers, we have found that elastomer seals are unsuitable for some high-temperature sterilization and cleaning processes. However, these applications may still require sealing at the fastening point.
Hygienic screw with a metal-to-metal seal: This option uses a metal-to-metal sealing design and requires the sealing contact surface to be precisely finished to Ra < 0.8 µm.
Hygienic screw without a seal: This option is available for applications where sealing is not required.