Project Description

Mercedes-AMG GT S

BONOSS Forged Grade 12.9 Shell Type Lock Bolt Kits


One of the most popular Mercedes cars is here! AMG GT S!

Mercedes-AMG GT S customer saw the passage and decided to install the kit. He sent us the feedback on installing the BONOSS Shell Type Lock Bolt Kits:

The owner of the Mercedes-AMG GT S installed BONOSS Forged Grade 12.9 Shell Type Lock Bolt Kits(Silver). Front 27mm (1.1 inches), rear 27mm (1.1 inches), PCD 5×112, CB 66.5, (Forged FT101 Wheels) Conical Seat Bolts 14×1.5. Recently, the HANDWERKER garage has helped many customers to install the BONOSS products. Here are images of the car’s appearance after installation. Let’s have a look at them.(The images originate from HANDWERKER garage)

What does Shell Type Lock Bolt Kit do?

The product is named by BONOSS and this latest product is welcomed by many customers, short type and long type can be selected by customers, the product upgrades the appearance of bolt, match the bolt with a shell, that is the reason why BONOSS name it “Shell Type”. The shell has two functions. First, protect the wheel bolts from debris and water corrosion, extend the service life of wheel bolts. On the other hand, the trend of modding our unique cars is a part of car culture. We hope every car is special for every driver, even the detail of a piece of the bolt.


Exciting moment! Let’s talk about this Mercedes-AMG GT S.

The GT S powered by a 4.0-litre M178 twin-turbocharged V8 engine, uses a front mid-engine, rear-wheel-drive layout, with the engine positioned inside of the vehicle’s wheelbase. An all-new 4.0-litre V8 with twin-turbochargers, a seven-speed dual-clutch gearbox, multi-link suspension, and a low center of gravity – it has all the best sports car ingredients. The M178 engine in this variant is tuned to an output of 384 kW (522 PS; 515 hp) and 671 N⋅m (495 lb⋅ft) of torque. The AMG-GT S feels instantly responsive, yet peak power doesn’t arrive until 6,000rpm – so there’s performance on offer throughout the rev range.

It is easy to explain the reason why GT S is welcomed by many people who chasing high performance. The GT S was the Formula 1 safety car for the 2015, 2016, and 2017 seasons, having made its debut in that role at the 2015 Australian Grand Prix. Expensive car? No! The AMG GT S’s build quality is first class, with plenty of leather and metal used throughout. A high-performance V8-engined sports car with a near six-figure price tag is never going to be cheap to run.

This Mercedes-AMG GT S mods:BONOSS Forged Grade 12.9 Shell Type Lock Bolt Kits, 305 Forged FT101 Wheels.

(Pay attention: the reason why the customer chooses conical seat bolts is changing the wheels, the bolts seat type should match the wheel seat type.)


BONOSS Shell Type Lock Bolt Kits = Grade 12.9 Bolt + Forged 7075-T6 Shell

The product adopts SCM440 material as the material of bolt. It is a commonly used steel grade for the production of high-strength fasteners. The product has the advantages of stable composition, low harmful elements, high steel purity, small decarburization layer, and few surface defects. The heat treatment quality is stable and the hardness is uniform. The ball and conical seat bolts can be selected according to the stock bolt seat. In addition, different lengths also can be selected (25-75mm) in case of installing the wheel spacers. The shell is made of 7075-T6 material, 8 colors can be selected.


We are proud that the product pass TUV, SGS standard, TUV, and SGS actual test report performance parameters are as follows: (Tested by authoritative third-party SGS TUV certification)
Tensile Strength ≥ 1220MPa
Ultimate Tensile Load ≥ 152000N
Proof Load ≥ 121000N
Limited  Life Range Test ≥ 2000000 Stress Cycles Without Damage
Neutral Salt Spray Test ≥ 192H
BONOSS focuses on the best quality for every customer.

Additional Information:

  • BONOSS Forged 12.9 Grade Shell Type Lock Bolt Kits colors can be customized flexibly. Thus, if you would like different colors of shell type lock bolt kits, feel free to contact us. The data of this Mercedes-AMG GT S are front 27mm (1.1 inches), rear 27mm (1.1 inches), PCD 5×112, CB 66.5, (Forged FT101 Wheels) conical seat bolts 14×1.5.
  • The extended bolts are shell structure design, which effectively protects the bolts from rusting. This Mercedes-AMG GT S uses (Forged FT101wheels) conical seat bolts. If you would like a set of shell type lock bolt kit, please ensure the seat type of the bolts is suitable for threading tightly. And, if you don’t know the proper length, you are welcomed to contact our tech staff freely.
  • Each BONOSS product is printed with the logo of “BONOSS”. This offers an easy method to distinguish other fake and inferior products. At the same time, it also provides a way to find our after-sales service. Our products are 10 Years Limited Warranty (new products with 12 months warranty), which is an excellent and cost-effective choice for your car upgrades.

Interested in purchasing? Click HERE to know more!