Hollow Allen Bolt Exporter & Supplier | Stainless Steel A2 & A4 Grades | Jinnox Bolt

Jinnox Bolt is a reliable hollow Allen bolt supplier in Oman and offers pre-engineered fasteners that are used in industrial and mechanical processes. Hollow Allen bolts have been characterized by an internal hex drive and hollow center design, which enable reduction of their weight and preservation of high structural strength. The bolts find application in hydraulic systems, automotive assemblies, and heavy equipment where long life and high accuracy in the application of torque are needed. Industries can receive consistent quality fasteners produced with extreme dimensional control and performance through the assistance of a stable B2B supply.

It is fabricated with high-quality materials, as hollow Allen bolts come in high-strength alloys of Grade 8.8, Grade 10.9, and Grade 12.9 alloy steel with corrosion-resistant materials such as A2-70 and A4-80 stainless steel. Their high load-carrying capacity and high fatigue resistance ensure that they are appropriate in the case of important installations in the construction, marine, and engineering industries. In addition to these fasteners, Hex Flange Bolt suppliers are also relied on to provide complementary parts, which will ensure that large-scale industrial fastening systems are compatible and efficient.

Material & Grades Table – Hollow Allen Bolt

Material	Grade / Standard	Size / Thickness / Diameter	Extra Specification	Weight (kg/1000 pcs)
Stainless Steel	SS 304 / ASTM F593	M3–M20 × 5–200 mm	General-purpose corrosion-resistant hollow bolt	Approx. 0.5–250
Stainless Steel	SS 316 / ASTM F593	M3–M20 × 5–200 mm	Marine and chemical applications	Approx. 0.5–250
Stainless Steel	SS 316L	M3–M20 × 5–200 mm	Low-carbon corrosion-resistant construction	Approx. 0.5–250
Alloy Steel	ASTM A574	M3–M24 × 5–250 mm	High-strength socket head fastener	Approx. 0.5–350
Alloy Steel	ISO 898-1 Class 10.9	M3–M24 × 5–250 mm	High-strength mechanical applications	Approx. 0.5–350
Alloy Steel	ISO 898-1 Class 12.9	M3–M24 × 5–250 mm	Very high-strength fastening	Approx. 0.5–350
Carbon Steel	SAE 1018	M3–M20 × 5–200 mm	General engineering applications	Approx. 0.5–250
Titanium	Grade 5 / ASTM F467	M3–M20 × 5–200 mm	Lightweight and corrosion-resistant	Approx. 0.3–250

Key Features & Advantages

• Hollow construction can reduce fastener weight
• Internal hexagonal socket enables controlled tightening
• Suitable for lightweight and compact assemblies
• High-strength alloy steel options support demanding applications
• Stainless steel grades provide excellent corrosion resistance
• Suitable for robotics, aerospace, automotive, and precision machinery
• Available in customized hollow profiles, sizes, grades, and finishes

Chemical Composition

Representative Grade: Stainless Steel 316

Element	Percentage (%)
Chromium (Cr)	16.0–18.0
Nickel (Ni)	10.0–14.0
Molybdenum (Mo)	2.0–3.0
Manganese (Mn)	2.00 max.
Carbon (C)	0.080 max.
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	515 MPa min.
Yield Strength	205 MPa min.
Elongation	40% min.
Hardness	95 HRB max.

Equivalent Grade

Standard	Grade
ASTM	F593 Type 316
UNS	S31600
EN	1.4401
DIN	X5CrNiMo17-12-2