Stainless Steel Hex Socket Flange Button Head Screw

Stainless Steel Hex Socket Flange Button Head Screw - Grade 202, 304, 316

Introducing the Hex Socket Flange Button Head Screw: where strength meets versatility. Engineered for durability and precision, this screw features a unique flange design that provides enhanced load distribution and stability. Its sleek button head simplifies installation while delivering a polished look. Perfectly suited for a variety of applications, trust our Hex Socket Flange Button Head Screw to secure your projects with confidence!

ISO 7380		ANSI B 18.3
Size	Length	Size	Length
M4	12-16	1/4"	5/8" - 15/8"
M5	12-30	5/16"	1" - 2 1/2"
M6	12-40	3/8"	1" - 2 1/2"
M8	20-50	7/16"	1" - 3"
M10	20-60	-	-

Hex Socket Flange Button Head Screw – Metric Specification Table

Size (Thread	Thread Pitch (mm)	Head Dia. (dk)	Head Height (k)	Flange Dia. (df)	Hex Key Size (s)	Typical Strength Class
M3	0.5	5.7 mm	1.65 mm	7.5 mm	2.0 mm	8.8 / A2-70
M4	0.7	7.6 mm	2.2 mm	9.5 mm	2.5 mm	8.8 / A2-70
M5	0.8	9.5 mm	2.75 mm	11.8 mm	3.0 mm	8.8 / A2-70
M6	1.0	10.5 mm	3.3 mm	13.6 mm	4.0 mm	8.8 / A2-70
M8	1.25	14.0 mm	4.4 mm	17.5 mm	5.0 mm	8.8 / A2-70
M10	1.5	17.5 mm	5.5 mm	21.0 mm	6.0 mm	8.8 / A2-70

Flange Diameter (df): Larger than the button head itself; varies by manufacturer if not standardized.
Alloy Steel (Class 8.8 or 10.9, black oxide coated)
Stainless Steel (A2-70, A4-80 grades)
Typically based on DIN 7380-2 with a custom or integrated flange

Torque Chart – Hex Socket Flange Button Head Screws (Metric, Class 8.8)

Size (Thread	Thread Pitch	Torque (Nm) – Unlubricated	Torque (Nm) – Lubricated
M3	0.5 mm	1.2 Nm	0.9 Nm
M4	0.7 mm	2.8 Nm	2.1 Nm
M5	0.8 mm	5.6 Nm	4.2 Nm
M6	1.0 mm	9.5 Nm	7.1 Nm
M8	1.25 mm	23 Nm	17 Nm
M10	1.5 mm	46 Nm	35 Nm

Hex socket flange button head screws offer the perfect combination of features to create a superior fastener. The flange ensures a strong and visually pleasing appearance, while also providing a large bearing surface for clamping force distribution. With the addition of the button head, the screw gains a smooth and rounded profile. And thanks to the internal socket drive, these screws can be securely tightened with high torque.

Tensile Strength

≥700 MPa

Yield Strength

≥1100 MPa

Elongation

≥12%

Hardness Max

250 HB

Materials

Stainless Steel

Steel Grade

Finishing

Polished
Geomet
Dacromet
Teflon
Hot-Dip Galvanzing
Zinc (Yellow, White, Blue)
Black Qxide

Thread

Standards

Flange

The presence of a flange serves as a convenient alternative to a washer, effectively expanding the bearing area and guarding against potential harm to the fastened material, particularly in softer materials.

Button Head

The smooth, rounded head not only provides a sleek and polished look but also helps minimize the chances of snagging or getting tangled up.

Socket Drive

The internal hex socket enables secure and reliable connections, allowing for high torque tightening using either an Allen wrench or hex key.

Load Distribution

By utilizing a flange, the clamping force is dispersed over a larger surface, minimizing the chances of material being crushed or harmed.

Strong and Secure

Featuring a socket drive, this connection provides a robust and dependable bond with its ability to accommodate high tightening torque.

Corrosion Resistance

The chosen materials, such as stainless steel, possess strong resistance to corrosion, rendering them appropriate for a wide range of settings.

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