WHAT IS A BOLT CAP?

Soft plastic cap for bolt and nut heads is a product manufactured by Vijaya Sai Vina factory to cover bolt and nut heads.

Shape: According to advanced design of Korean technology, it is hexagonal in shape, with a rivet to help cover (cover, cover) bolt and nut heads from environmental corrosion better than current caps.
Raw materials: The cap product is made entirely from virgin plastic, safe for the environment and humans.
Certificate: Full certification of raw material components, ISO, ROHS, UL 94, UV resistance certificate… Insulation certificate up to 24kV by Quatest 1.
Size: Full sizes from M6, M8, M10, M12, M14, M16 available.
Color: Two standard colors are black/red, in addition Vijaya Sai Vina can produce if customers have specific color requirements.

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DETAILED TECHNICAL SPECIFICATIONS OF BOLT AND NUTS:

Hexagon bolt cap standard DIN 933 full thread and DIN 931 half thread:

BOLT CAPS	PART NO	BOLT SIZE	S (mm)	T (mm)	PACKING QTY (PCS/ bag)
	VJBC-01-M6	M6	10	1-1.5	300
	VJBC-01-M8	M8	13	1-1.5	300
	VJBC-01-M10	M10	17	1-1.5	200
	VJBC-01-M12	M12	19	1-1.5	200
	VJBC-01-M14	M14	22	1-1.5	100
	VJBC-01-M16	M16	24	1-1.5	100

DIN 934 standard hexagon nut cap:

NUT CAPS	PART NO	NUT SIZE	S (mm)	T (mm)	PACKING QTY (PCS/ bag)
	VJNC-01A-M6	M6	10	1-1.5	300
	VJNC-01A-M8	M8	13	1-1.5	300
	VJNC-01A-M10	M10	17	1-1.5	200
	VJNC-01A-M12	M12	19	1-1.5	200
	VJNC-01A-M14	M14	22	1-1.5	100
	VJNC-01A-M16	M16	24	1-1.5	100

WHAT ARE THE FIELDS OF BOLT CAP APPLICATIONS?

The main purpose of the product is to cover and cover the cap of bolts and nuts, however, in each production field, the role of the product is different:

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In the civil field such as the production of tables, chairs, household appliances, bolt covers are used to cover the points of objects connected by bolts with the effect of covering the sharp edges of the bolts that can scratch the skin when touching the sharp edges of the bolts, creating aesthetics and also used to increase the aesthetics of the product…etc….
In the industrial field with many applications and functions to cover exposed nuts and bolts, while providing effective protection from damage and weather, while improving the appearance of your product. Soft plastic cap products for nuts and bolts produced by Vijaya Sai Vina are widely used in the water industry, covering bolt heads, nuts at the bolt mounting points on industrial tanks and are also used in many other fields as follows:
Protect bolt heads, nuts from the impact of water, acid,… inside and outside industrial water tanks.
With high insulation capacity up to 36kV, so use the insulating cap of the bolt head in the medium voltage and high voltage electrical cabinet.
With good weather resistance, the marine environment should be used to cover many bolt heads, nuts at the foot of lamp posts, outdoor railings and marine areas.
Cover and protect the head of the bolt head nut of the ventilation system, air conditioning, building water pipes
…
In addition to the protection features, the cap with diverse colors, colors according to customer requirements, is also widely used in the field of interior and exterior decoration and beautifying buildings and works.

WHAT ARE THE ADVANTAGES OF VIJAYA SAI VINA FACTORY’S CAP PRODUCTS COMPARED TO OTHER PRODUCTS ON THE MARKET?

1) Safety for humans:

Soft plastic bolt caps manufactured by Vijaya Sai Vina are made from virgin plastic materials by advanced technology lines from Korea.

Currently, bolt and nut caps on the market are mainly made from hard plastic, with the main raw material being recycled plastic containing many banned substances that are toxic to the environment and humans.

Refer to ROHS II 10 standard with regulations on 10 banned substances and permitted dosages as follows:

No.	Substance/Substance group	CAS Number	EC Number	Threshold
1	Lead / Lead Compounds (Pb)	7439-92-1	231-100-4	< 100 ppm
2	Cadmium / Cadmium Compounds (Cd)	7440-43-9	23-152-8	< 100 ppm
3	Hexavalent Chromium/ Hexavalent Chromium Compounds (Cr VI)	1333-82-0	239-056-8	< 100ppm
4	Mercury / Mercury Compounds (Hg)	7439-97-6	231-106-7	< 50ppm,
5	Polybrominated Biphenyls (PBBs)	59536-65-1		< 100ppm
6	Polybrominated Diphenylethers (PBDEs)	101-55-3		< 1000ppm
7	Bis (2-ethylhexyl) phthalate (DEHP)	117-81-7	204-211-0	< 1000ppm
8	Butyl benzyl phthalate (BBP)	85-68-7		< 1000ppm
9	Dibutyl Phthalate (DBP)	84-74-2		< 1000ppm
10	Diisobutyl phthalate (DIBP)	84-69-5		< 1000ppm

2) Quality and color:

Products manufactured by VIJAYA SAI VINA factory always have a specialized quality department that carefully checks based on criteria of appearance, required size as well as mechanical, physical and chemical properties of the product carefully before exporting to customers. Ensuring that the products delivered to customers fully meet the quality criteria as required.

Other bolt and nut caps on the market today are mainly imported from China or some small processing units in Vietnam with extrusion technology from recycled hard plastic particles, so the products are completely untested and uncertified for quality, the products after a period of use often age quickly, leading to fragile products, powdery … no longer retaining the original function and task, causing the overall product to quickly deteriorate. Products with uneven colors, sizes and many burrs.

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3) Origin and delivery schedule, service quality:

Soft plastic caps are manufactured by Vijaya Sai Vina / Vietnam factory with address right at Duong Lieu Industrial Park, Hoai Duc, Hanoi. Therefore, customers can be completely assured about the origin as well as the proactive delivery schedule, without worrying about additional costs for urgent orders.