Type II Cross Recessed Truss Head Screws

Our Type II Cross Recessed Truss Head Screws are manufactured by the cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.

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Product Introduction

Description

Our Type II Cross Recessed Truss Head Screws are manufactured by cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.

We have an advanced and comprehensive range of capabilities including engineering, R&D, prototyping, custom manufacturing, precision processing and testing. All materials are sourced from the most reputable and exacting foundries in the world. We maintain a multi-million-dollar inventory of fasteners in our product warehouse, which enables us to select, package and expedite your type II cross recessed truss head machine screw order quickly.

We are proud to serve our distributors, EPCs, OEM and MRO customers worldwide.

Our fasteners meet applicable ASTM, ANSI, ASME, SAE, API, NAS, AN, MS, NACE, ISO, DIN, and KS standards.

Our markets include rail transportation, medical equipment, aerospace, ships, semiconductors, oil and gas, pharmaceuticals, petrochemicals & refining, food & beverages,and etc.

Features

1. Truss Head design: Type II Cross Recessed Truss Head Screws feature a Truss Head design, providing a larger contact area and better fastening strength.
2. Cross recess design: The product is equipped with a cross recess, making it easy to use with a screwdriver or screwdriver bit for installation and removal.
3. Multiple sizes and specifications: The product offers a variety of sizes and specifications to accommodate different application scenarios and thread requirements.
4. High-strength material: These are typically made from high-strength steel or stainless steel, providing excellent tensile strength and corrosion resistance.
5. Easy to use: The product is designed for easy installation and tightening, improving work efficiency.
6. Suitable for thin sheets: These are suitable for fastening thin sheet materials, such as metal sheets or plastic sheets.
7. Wide range of applications: This type of screw is widely used in furniture manufacturing, mechanical engineering, electronics, and other fields for securing and connecting various components.
8. High-precision manufacturing: Undergo high-precision manufacturing, ensuring accurate dimensions and consistency.

Specifications


Dimensions of Type II Cross Recessed Truss Head Machine Screws
Nominal Size or Basic Screw Diameter		A		H		R	M	T	N	Recess Penetration Gaging Depth
		Head Diameter		Head Height		Head Radius	Recess Diameter	Recess Depth	Recess Width
		Head Diameter		Head Height
		Max.	Min.	Max.	Min.					Max.	Min.
5	0.1250	0.289	0.272	0.078	0.066	0.191	0.157	0.086	0.033	0.068	0.057
6	0.1380	0.321	0.303	0.086	0.074	0.211	0.175	0.097	0.035	0.079	0.068
8	0.1640	0.384	0.364	0.102	0.088	0.254	0.209	0.115	0.041	0.102	0.091
10	0.1900	0.448	0.425	0.118	0.103	0.283	0.244	0.138	0.046	0.126	0.113
12	0.2160	0.511	0.487	0.134	0.118	0.336	0.279	0.160	0.051	0.148	0.136
1/4	0.2500	0.573	0.546	0.150	0.133	0.375	0.313	0.174	0.057	0.171	0.157
5/16	0.3125	0.698	0.666	0.183	0.162	0.457	0.382	0.219	0.067	0.217	0.201
3/8	0.3750	0.823	0.787	0.215	0.191	0.538	0.446	0.261	0.076	0.259	0.242
7/16	0.4375	0.948	0.907	0.248	0.221	0.619	0.511	0.304	0.086	0.303	0.284
1/2	0.5000	1.073	1.028	0.280	0.250	0.701	0.588	0.354	0.097	0.354	0.333
9/16	0.5625	1.198	1.149	0.312	0.279	0.783	0.588	0.354	0.097	0.354	0.333
5/8	0.6250	1.323	1.269	0.345	0.309	0.863	0.588	0.354	0.097	0.354	0.333
3/4	0.7500	1.573	1.511	0.410	0.368	1.024	0.588	0.354	0.097	0.354	0.333

Material Options

INCONEL
Inconel® 600, UNS N06600, DIN EN 2.4816
Inconel® 601, UNS N06601, DIN EN 2.4851
Inconel®625, UNS N06625, DIN EN 2.4856
Inconel®718, UNS N07718, DIN EN 2.4668

INCOLOY
Incoloy® 800H, UNS N08810, DIN EN 1.4958
Incoloy® 800HT, UNS N08811, DIN EN 1.4959
Incoloy® 825, UNS N08825, DIN EN 2.4858
Incoloy® 925, UNS N09925, DIN EN –

HASTELLOY
Hastelloy® C-276, UNS N10276, DIN EN 2.4819
Hastelloy® C-22, UNS N06022, DIN EN 2.4602
Hastelloy® B-2, UNS N10665, DIN EN 2.4617
Hastelloy® G-30, UNS N06030, DIN EN 2.4063

MONEL
Monel® 400, UNS N04400, DIN EN 2.4360
Monel® K-500, UNS N05500, DIN EN 2.4375

NICKEL
Nickel 200, UNS N02200, DIN EN 2.4060, 2.4066
Nickel 201, UNS N02201, DIN EN 2.4061, 2.4068

ZIRCONIUM
Zr 702, UNS R60702, DIN EN –
Zr 705, UNS R60705, DIN EN –

TITANIUM
Titanium Gr-2, UNS R50400, DIN EN 3.7035
Titanium Gr-5, UNS R56400, DIN EN 3.7164, 3.7165
Titanium Gr-7, UNS R52400, DIN EN 3.7235
Titanium Gr-23, UNS R56401, DIN EN –

6% MOLY
AL-6XN®, UNS N08367, DIN EN –
25-6Mo, Alloy 926, UNS N08926 (N08925), DIN EN 1.4529
254 SMO, UNS S31254, DIN EN 1.4547

STAINLESS STEEL
A-286 Stainless Steel, UNS S66286, DIN EN 1.4980
310S Stainless Steel, UNS S31008, DIN EN 1.4845
317L Stainless Steel, UNS S31703, DIN EN 1.4438
321 Stainless Steel, UNS S32100, DIN EN 1.4541
904L Stainless Steel, UNS N08904, DIN EN 1.4539
Nitronic® 60, UNS S21800, DIN EN –

DUPLEX STAINLESS STEEL
Duplex 2205, UNS S32205, S31803, DIN EN 1.4462
Super Duplex 2507, UNS S32750, DIN EN 1.4410
Super Duplex S32760, UNSS32760, DIN EN 1.4501

Differences Between Truss Head and Pan Head Screws

Truss head and pan head screws have a similar shape. They are both rounded, and they are both non-countersunk. You can also find them in different head recesses. Whether truss head or pan head, screws are available in different head recesses. The head recess, of course, determines the type of bit with which a screw can be installed and removed. Some truss head screws and pan head screws have a Philips head recess, whereas others have a flat head recess.

Being that they look similar, you might be wondering how truss head and pan head screws differ from each other. The main difference lies in their profile. Truss head screws typically have a lower profile than pan head screws.

Both truss head and pan head screws will protrude out of the workpieces in which they are installed. This is a defining characteristic of all non-countersunk screws. Truss head and pan head screws are non-countersunk, so they'll produce out of workpieces. With that said, truss head screws have a lower profile than their pan head counterparts.

The low profile of truss heads means that they'll sit lower on workpieces. The head won't produce as far out of the workpieces as pan head screws. Pan head screws have a higher profile, so the head protrudes farther out.

FAQs

Q: Why use truss head screws?

A: Truss Head - Sometimes called a mushroom head, provides a larger bearing surface and a lower profile than pan or round heads.

Q: What does a truss head look like?

A: Truss head screws are threaded fasteners with a mushroom-shaped head. They have a wide and slightly rounded head that resembles a mushroom.

Q: How wide is a truss head screw?

A: Available in #6, #8 and #10 diameters. Available from 1/2" up to 1 1/2" lengths. Available with 12, 15, 16 or 18 diameter heads, depending on the size, for greater load-bearing surface.

Q: Can you use truss screws on wood?

A: Self-tapping, modified truss screws - also known as wafer head, round washer head and k-lathe screws - fit the needs of numerous industries, from woodworking to sheet metal fastening to HVAC.

Q: What is a truss head screw used for?

A: They are commonly used in the aerospace manufacturing industry. Like all screws, truss head screws feature external threading, which allows them to secure parts with internal threading. Truss head screws, though, feature a unique type of head that distinguishes them from other types of threaded fasteners.

Q: What is a modified truss head screw?

A: Modified Truss head screws - also known as wafer head, round washer head and k-lathe screws - are among the most versatile products in the inventory. They offer all the benefits of a pan head screw but feature a large diameter washer that give a clean, low-profile surface.

Q: What is pan vs truss head screws?

A: Although similar, the truss head has a larger diameter than the pan head. Although similar in head shape, a truss head screw head has a broader surface or larger diameter, and often a lower profile.

Q: How do truss screws work?

A: The truss screw provides a stud-to-bottom plate or stud-to-top plate connection as well as fastening trusses and rafters to top plates. The full-threaded shank engages the entire length of the fastener, providing a secure connection.

Q: What is cross recessed head screw?

A: Cross Recessed Thread Cutting Screws are threaded fasteners with a machine screw thread that will cut its own thread as it is driven into an unthreaded pilot hole. Cross Recessed Thread Cutting Screws have a head with a crossed recessed drive that can be driven with a Phillips screw driver.

Q: What is a cross head screw used for?

A: Phillips head screws, easily identifiable by their cross-shaped slot, offer a better grip for the screwdriver, reducing the chance of 'cam-out' (slipping). This design allows for higher torque to be applied, making them suitable for a wide range of applications, from electronics to construction.

Q: How do you measure a truss head screw?

A: So for hex-, pan-, button-, round-, and truss-head screws, length is measured from directly under the head to the tip.

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